linux系统获取基础硬件信息的shell

来自http://code.google.com/p/aspersa/

#!/bin/sh
# This program is part of Aspersa (http://code.google.com/p/aspersa/)

# ########################################################################
# A script to summarize system information in a nice way.
# Goals: work well on Linux; create a compact diff-able report that is
# easy to paste into a wiki or email, and easy to scan and compare too.
#
# Usage: $ wget -O- http://aspersa.googlecode.com/svn/trunk/summary |bash
# Options are set through the ASPERSA_SKIP environment variable.  Set this
# variable to a comma-separated list of things you want to omit.
# Options:
#  MOUNT:   Don't print out mounted filesystems and disk fullness.
#  NETWORK: Don't print out information on network controllers & config.
#  PROCESS: Don't print out top processes and vmstat information.
#
# Authors:
#  Baron Schwartz
#  Kevin van Zonneveld ([e-mail] || http://kevin.vanzonneveld.net)
# ########################################################################

# ########################################################################
# Globals, settings, helper functions
# ########################################################################
POSIXLY_CORRECT=1
export POSIXLY_CORRECT

# The awk code for fuzzy rounding.  (It's used in a few places, so makes sense
# not to duplicate).  It fuzzy-rounds the variable named fuzzy_var.  It goes in
# steps of 5, 10, 25, then repeats by a factor of 10 larger (50, 100, 250), and
# so on, until it finds a number that's large enough.  The pattern is slightly
# broken between the initial 1 and 50, because rounding to the nearest 2.5
# doesn't seem right to me.
fuzzy_formula='
   rounded = 0;
   if (fuzzy_var <= 10 ) {
      rounded   = 1;
   }
   factor = 1;
   while ( rounded == 0 ) {
      if ( fuzzy_var <= 50 * factor ) {
         fuzzy_var = sprintf("%.0f", fuzzy_var / (5 * factor)) * 5 * factor;
         rounded   = 1;
      }
      else if ( fuzzy_var <= 100  * factor) {
         fuzzy_var = sprintf("%.0f", fuzzy_var / (10 * factor)) * 10 * factor;
         rounded   = 1;
      }
      else if ( fuzzy_var <= 250  * factor) {
         fuzzy_var = sprintf("%.0f", fuzzy_var / (25 * factor)) * 25 * factor;
         rounded   = 1;
      }
      factor = factor * 10;
   }'

# Does fuzzy rounding: rounds to nearest interval, but the interval gets larger
# as the number gets larger.  This is to make things easier to diff.
fuzz () {
   echo $1 | $AP_AWK "{fuzzy_var=\$1; ${fuzzy_formula} print fuzzy_var;}"
}

# The temp files are for storing working results so we don't call commands many
# times (gives inconsistent results, maybe adds load on things I don't want to
# such as RAID controllers).  They must not exist -- if they did, someone would
# symlink them to /etc/passwd and then run this program as root.  Call this
# function with "rm" or "touch" as an argument.
temp_files() {
   for file in /tmp/aspersa /tmp/aspersa2; do
      case "$1" in
      touch)
         if ! touch "${file}"; then
            echo "I can't make my temp file ${file}";
            exit 1;
         fi
         ;;
      rm)
         rm -f "${file}"
         ;;
      esac
   done
}

# Print a space-padded string into $line.  Then translate spaces to hashes, and
# underscores to spaces.  End result is a line of hashes with words at the
# start.
section () {
   echo "$1" | awk '{l=sprintf("#_%-60s", $0 "_"); print l}' | sed -e 's/ /#/g' -e 's/_/ /g'
}

# Print a "name | value" line.
name_val() {
   printf "%12s | %s\n" "$1" "$(echo $2)"
}

# Converts a value to units of power of 2.  Arg 1: the value.  Arg 2: precision (defaults to 2).
shorten() {
   echo $@ | awk '{
      unit = "k";
      size = 1024;
      val  = $1;
      prec = 2;
      if ( $2 ~ /./ ) {
         prec = $2;
      }
      if ( val >= 1099511627776 ) {
         size = 1099511627776;
         unit = "T";
      }
      else if ( val >= 1073741824 ) {
         size = 1073741824;
         unit = "G";
      }
      else if ( val >= 1048576 ) {
         size = 1048576;
         unit = "M";
      }
      printf "%." prec "f%s", val / size, unit;
   }'
}

# ##############################################################################
# Function to take a file and collapse it into an aggregated list.  This
# function works on $1, which it expects to be created with 'sort |
# uniq -c'.  Leading whitespace is deleted.  The result will look like
# "4xabc, 1xdef"  Copy any changes to 'mysql-summary' too.
# ##############################################################################
group_concat () {
   sed -e '{H; $!d}' -e 'x' -e 's/\n[[:space:]]*\([[:digit:]]*\)[[:space:]]*/, \1x/g' -e 's/[[:space:]][[:space:]]*/ /g' -e 's/, //' ${1}
   # In words: save the whole file into the hold space,
   # {H; $!d}
   # Swap it back into the pattern space,
   # x
   # Join lines with a comma, delete leading whitespace, and put an 'x' between
   # the number and the text that follows,
   # s/\n[[:space:]]*\([[:digit:]]*\)[[:space:]]*/, \1x/g
   # Collapse whitespace,
   # s/[[:space:]][[:space:]]*/ /g
   # And delete the leading comma-space.
   # s/, //
}

# ##############################################################################
# Functions for parsing specific files and getting desired info from them.
# These are called from within main() and are separated so they can be tested
# easily.  The calling convention is that the data they need to run is prepared
# first by putting it into /tmp/aspersa.  Then code that's testing just needs to
# put sample data into /tmp/aspersa and call it.
# ##############################################################################
   
# ##############################################################################
# Parse Linux's /proc/cpuinfo, which should be stored in /tmp/aspersa.
# ##############################################################################
parse_proc_cpuinfo () {
   # Physical processors are indicated by distinct 'physical id'.  Virtual CPUs
   # are indicated by paragraphs -- one per paragraph.  We assume that all
   # processors are identical, i.e. that there are not some processors with dual
   # cores and some with quad cores.
   virtual=$(grep -c ^processor /tmp/aspersa);
   physical=$(grep 'physical id' /tmp/aspersa | sort -u | wc -l);
   cores=$(grep 'cpu cores' /tmp/aspersa | head -n 1 | cut -d: -f2);

   # Older kernel won't have 'physical id' or 'cpu cores'.
   if [ "${physical}" = "0" ]; then physical=${virtual}; fi
   if [ -z "${cores}" ]; then cores=0; fi

   # Test for HTT; cannot trust the 'ht' flag.  If physical * cores < virtual,
   # then hyperthreading is in use.
   cores=$((${cores} * ${physical}));
   if [ ${cores} -gt 0 -a $cores -lt $virtual ]; then htt=yes; else htt=no; fi

   name_val "Processors" "physical = ${physical}, cores = ${cores}, virtual = ${virtual}, hyperthreading = ${htt}"

   awk -F: '/cpu MHz/{print $2}' /tmp/aspersa \
      | sort | uniq -c > /tmp/aspersa2
   name_val "Speeds" "$(group_concat /tmp/aspersa2)"

   awk -F: '/model name/{print $2}' /tmp/aspersa \
      | sort | uniq -c > /tmp/aspersa2
   name_val "Models" "$(group_concat /tmp/aspersa2)"

   awk -F: '/cache size/{print $2}' /tmp/aspersa \
      | sort | uniq -c > /tmp/aspersa2
   name_val "Caches" "$(group_concat /tmp/aspersa2)"
}

# ##############################################################################
# Parse sysctl -a output on FreeBSD, and format it as CPU info.  The file is the
# first argument.
# ##############################################################################
parse_sysctl_cpu_freebsd() {
   virtual="$(awk '/hw.ncpu/{print $2}' "$1")"
   name_val "Processors" "virtual = ${virtual}"
   name_val "Speeds" "$(awk '/hw.clockrate/{print $2}' "$1")"
   name_val "Models" "$(awk -F: '/hw.model/{print substr($2, 2)}' "$1")"
}

# ##############################################################################
# Parse CPU info from psrinfo -v
# ##############################################################################
parse_psrinfo_cpus() {
   name_val Processors $(grep -c 'Status of .* processor' "$1")
   awk '/operates at/ {
      start = index($0, " at ") + 4;
      end   = length($0) - start - 4
      print substr($0, start, end);
   }' "$1" | sort | uniq -c > /tmp/aspersa2
   name_val "Speeds" "$(group_concat /tmp/aspersa2)"
}

# ##############################################################################
# Parse the output of 'free -b' plus the contents of /proc/meminfo
# ##############################################################################
parse_free_minus_b () {
   physical=$(awk '/Mem:/{print $3}' "${1}")
   swap=$(awk '/Swap:/{print $3}' "${1}")
   virtual=$(shorten $(($physical + $swap)))

   name_val Total   $(shorten $(awk '/Mem:/{print $2}' "${1}"))
   name_val Free    $(shorten $(awk '/Mem:/{print $4}' "${1}"))
   name_val Used    "physical = $(shorten ${physical}), swap = $(shorten ${swap}), virtual = ${virtual}"
   name_val Buffers $(shorten $(awk '/Mem:/{print $6}' "${1}"))
   name_val Caches  $(shorten $(awk '/Mem:/{print $7}' "${1}"))
   name_val Dirty  "$(awk '/Dirty:/ {print $2, $3}' "${1}")"
}

# ##############################################################################
# Parse FreeBSD memory info from sysctl output.
# ##############################################################################
parse_memory_sysctl_freebsd() {
   physical=$(awk '/hw.realmem:/{print $2}' "${1}")
   mem_hw=$(awk '/hw.physmem:/{print $2}' "${1}")
   mem_used=$(awk '
      /hw.physmem/                   { mem_hw       = $2; }
      /vm.stats.vm.v_inactive_count/ { mem_inactive = $2; }
      /vm.stats.vm.v_cache_count/    { mem_cache    = $2; }
      /vm.stats.vm.v_free_count/     { mem_free     = $2; }
      /hw.pagesize/                  { pagesize     = $2; }
      END {
         mem_inactive *= pagesize;
         mem_cache    *= pagesize;
         mem_free     *= pagesize;
         print mem_hw - mem_inactive - mem_cache - mem_free;
      }
   ' "$1");
   name_val Total   $(shorten ${mem_hw} 1)
   name_val Virtual $(shorten ${physical} 1)
   name_val Used    $(shorten ${mem_used} 1)
}

# ##############################################################################
# Parse memory devices from the output of 'dmidecode', which should be stored in
# /tmp/aspersa.
# ##############################################################################
parse_dmidecode_mem_devices () {
   echo "  Locator   Size     Speed             Form Factor   Type          Type Detail"
   echo "  ========= ======== ================= ============= ============= ==========="
   # Print paragraphs containing 'Memory Device\n', extract the desired bits,
   # concatenate them into one long line, then format as a table.  The data
   # comes out in this order for each paragraph:
   # $2  Size         2048 MB
   # $3  Form Factor  <OUT OF SPEC>
   # $4  Locator      DIMM1
   # $5  Type         <OUT OF SPEC>
   # $6  Type Detail  Synchronous
   # $7  Speed        667 MHz (1.5 ns)
   sed    -e '/./{H;$!d;}' \
          -e 'x;/Memory Device\n/!d;' \
          -e 's/: /:/g' \
          -e 's/</{/g' \
          -e 's/>/}/g' \
          -e 's/[ \t]*\n/\n/g' \
       /tmp/aspersa \
       | awk -F: '/Size|Type|Form.Factor|Type.Detail|[^ ]Locator/{printf("|%s", $2)}/Speed/{print "|" $2}' \
       | sed -e 's/No Module Installed/{EMPTY}/' \
       | sort \
       | awk -F'|' '{printf("  %-9s %-8s %-17s %-13s %-13s %-8s\n", $4, $2, $7, $3, $5, $6);}'
}

# ##############################################################################
# Parse the output of 'netstat -antp'
# ##############################################################################
parse_ip_s_link () {
   echo "  interface  rx_bytes rx_packets  rx_errors   tx_bytes tx_packets  tx_errors"
   echo "  ========= ========= ========== ========== ========== ========== =========="

   awk "/^[1-9][0-9]*:/ {
      save[\"iface\"] = substr(\$2, 0, index(\$2, \":\") - 1);
      new = 1;
   }
   \$0 !~ /[^0-9 ]/ {
      if ( new == 1 ) {
         new = 0;
         fuzzy_var = \$1; ${fuzzy_formula} save[\"bytes\"] = fuzzy_var;
         fuzzy_var = \$2; ${fuzzy_formula} save[\"packs\"] = fuzzy_var;
         fuzzy_var = \$3; ${fuzzy_formula} save[\"errs\"]  = fuzzy_var;
      }
      else {
         fuzzy_var = \$1; ${fuzzy_formula} tx_bytes   = fuzzy_var;
         fuzzy_var = \$2; ${fuzzy_formula} tx_packets = fuzzy_var;
         fuzzy_var = \$3; ${fuzzy_formula} tx_errors  = fuzzy_var;
         printf \"  %-8s %10d %10d %10d %10d %10d %10d\\n\", save[\"iface\"], save[\"bytes\"], save[\"packs\"], save[\"errs\"], tx_bytes, tx_packets, tx_errors;
      }
   }" $@
}

# ##############################################################################
# Parse the output of 'netstat -antp' which should be in /tmp/aspersa.
# ##############################################################################
parse_netstat () {
   echo "  Connections from remote IP addresses"
   awk '$1 ~ /^tcp/ && $5 ~ /^[1-9]/ {
      print substr($5, 0, index($5, ":") - 1);
   }' /tmp/aspersa | sort | uniq -c \
      | awk "{
         fuzzy_var=\$1;
         ${fuzzy_formula}
         printf \"    %-15s %5d\\n\", \$2, fuzzy_var;
         }" \
      | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4
   echo "  Connections to local IP addresses"
   awk '$1 ~ /^tcp/ && $5 ~ /^[1-9]/ {
      print substr($4, 0, index($4, ":") - 1);
   }' /tmp/aspersa | sort | uniq -c \
      | awk "{
         fuzzy_var=\$1;
         ${fuzzy_formula}
         printf \"    %-15s %5d\\n\", \$2, fuzzy_var;
         }" \
      | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4
   echo "  Connections to top 10 local ports"
   awk '$1 ~ /^tcp/ && $5 ~ /^[1-9]/ {
      print substr($4, index($4, ":") + 1);
   }' /tmp/aspersa | sort | uniq -c | sort -rn | head -n10 \
      | awk "{
         fuzzy_var=\$1;
         ${fuzzy_formula}
         printf \"    %-15s %5d\\n\", \$2, fuzzy_var;
         }" | sort
   echo "  States of connections"
   awk '$1 ~ /^tcp/ {
      print $6;
   }' /tmp/aspersa | sort | uniq -c | sort -rn \
      | awk "{
         fuzzy_var=\$1;
         ${fuzzy_formula}
         printf \"    %-15s %5d\\n\", \$2, fuzzy_var;
         }" | sort
}

# ##############################################################################
# Parse the joined output of 'mount' and 'df -hP'.  $1 = file; $2 = ostype.
# ##############################################################################
parse_filesystems () {
   # Filesystem names and mountpoints can be very long.  We try to align things
   # as nicely as possible by making columns only as wide as needed.  This
   # requires two passes through the file.  The first pass finds the max size of
   # these columns and prints out a printf spec, and the second prints out the
   # file nicely aligned.
   cat > /tmp/aspersa.awk <<-EOF
      BEGIN {
         device     = 10;
         fstype     = 4;
         options    = 4;
      }
      /./ {
         f_device     = \$1;
         f_fstype     = \$10;
         f_options    = substr(\$11, 2, length(\$11) - 2);
         if ( "$2" == "FreeBSD" ) {
            f_fstype  = substr(\$9, 2, length(\$9) - 2);
            f_options = substr(\$0, index(\$0, ",") + 2);
            f_options = substr(f_options, 1, length(f_options) - 1);
         }
         if ( length(f_device) > device ) {
            device=length(f_device);
         }
         if ( length(f_fstype) > fstype ) {
            fstype=length(f_fstype);
         }
         if ( length(f_options) > options ) {
            options=length(f_options);
         }
      }
      END{
         print "%-" device "s %5s %4s %-" fstype "s %-" options "s %s";
      }
	EOF
   spec="$( awk -f /tmp/aspersa.awk "$1" )";
   #awk -f /tmp/aspersa.awk "$1"
   #return;

   cat > /tmp/aspersa.awk <<-EOF
      BEGIN {
         spec="  ${spec}\\n";
         printf spec, "Filesystem", "Size", "Used", "Type", "Opts", "Mountpoint";
      }
      {
         f_fstype     = \$10;
         f_options    = substr(\$11, 2, length(\$11) - 2);
         if ( "$2" == "FreeBSD" ) {
            f_fstype  = substr(\$9, 2, length(\$9) - 2);
            f_options = substr(\$0, index(\$0, ",") + 2);
            f_options = substr(f_options, 1, length(f_options) - 1);
         }
         printf spec, \$1, \$2, \$5, f_fstype, f_options, \$6;
      }
	EOF
   awk -f /tmp/aspersa.awk "$1"
}

# ##############################################################################
# Parse the output of fdisk -l, which should be in /tmp/aspersa; there might be
# multiple fdisk -l outputs in the file.
# ##############################################################################
parse_fdisk () {
   awk '
      BEGIN {
         format="%-12s %4s %10s %10s %18s\n";
         printf(format, "Device", "Type", "Start", "End", "Size");
         printf(format, "============", "====", "==========", "==========", "==================");
      }
      /Disk.*bytes/ {
         disk = substr($2, 1, length($2) - 1);
         size = $5;
         printf(format, disk, "Disk", "", "", size);
      }
      /Units/ {
         units = $9;
      }
      /^\/dev/ {
         if ( $2 == "*" ) {
            start = $3;
            end   = $4;
         }
         else {
            start = $2;
            end   = $3;
         }
         printf(format, $1, "Part", start, end, sprintf("%.0f", (end - start) * units));
      }
   ' /tmp/aspersa
}

# ##############################################################################
# Parse the output of dmesg, which should be in /tmp/aspersa, and detect
# virtualization.
# ##############################################################################
parse_virtualization_dmesg () {
   if grep -qi -e vmware -e vmxnet -e 'paravirtualized kernel on vmi' /tmp/aspersa; then
      echo "VMWare";
   elif grep -qi -e 'paravirtualized kernel on xen' -e 'Xen virtual console' /tmp/aspersa; then
      echo "Xen";
   elif grep -qi qemu /tmp/aspersa; then
      echo "QEmu";
   elif grep -qi 'paravirtualized kernel on KVM' /tmp/aspersa; then
      echo "KVM";
   elif grep -q VBOX /tmp/aspersa; then
      echo "VirtualBox";
   elif grep -qi 'hd.: Virtual .., ATA.*drive' /tmp/aspersa; then
      echo "Microsoft VirtualPC";
   fi
}

# ##############################################################################
# Try to figure out if a system is a guest by looking at prtdiag, smbios, etc.
# ##############################################################################
parse_virtualization_generic() {
   if grep -i -e virtualbox "$1" >/dev/null; then
      echo VirtualBox
   elif grep -i -e vmware "$1" >/dev/null; then
      echo VMWare
   fi
}

# ##############################################################################
# Parse the output of lspci, which should be in /tmp/aspersa, and detect
# Ethernet cards.
# ##############################################################################
parse_ethernet_controller_lspci () {
   grep -i ethernet /tmp/aspersa | cut -d: -f3 | while read line; do
      name_val Controller "${line}"
   done
}

# ##############################################################################
# Parse the output of lspci, which should be in /tmp/aspersa, and detect RAID
# controllers.
# ##############################################################################
parse_raid_controller_lspci () {
   if grep -q "RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS" /tmp/aspersa; then
      echo 'LSI Logic MegaRAID SAS'
   elif grep -q "Fusion-MPT SAS" /tmp/aspersa; then
      echo 'Fusion-MPT SAS'
   elif grep -q "RAID bus controller: LSI Logic / Symbios Logic Unknown" /tmp/aspersa; then
      echo 'LSI Logic Unknown'
   elif grep -q "RAID bus controller: Adaptec AAC-RAID" /tmp/aspersa; then
      echo 'AACRAID'
   elif grep -q "3ware [0-9]* Storage Controller" /tmp/aspersa; then
      echo '3Ware'
   elif grep -q "Hewlett-Packard Company Smart Array" /tmp/aspersa; then
      echo 'HP Smart Array'
   elif grep -q " RAID bus controller: " /tmp/aspersa; then
      awk -F: '/RAID bus controller\:/ {print $3" "$5" "$6}' /tmp/aspersa
   fi
}

# ##############################################################################
# Parse the output of dmesg, which should be in /tmp/aspersa, and detect RAID
# controllers.
# ##############################################################################
parse_raid_controller_dmesg () {
   pat='scsi[0-9].*: .*'
   if grep -qi "${pat}megaraid" /tmp/aspersa; then
      echo 'LSI Logic MegaRAID SAS'
   elif grep -q "Fusion MPT SAS" /tmp/aspersa; then
      echo 'Fusion-MPT SAS'
   elif grep -q "${pat}aacraid" /tmp/aspersa; then
      echo 'AACRAID'
   elif grep -q "${pat}3ware [0-9]* Storage Controller" /tmp/aspersa; then
      echo '3Ware'
   fi
}

# ##############################################################################
# Parse the output of "hpacucli ctrl all show config", which should be stored in
# /tmp/aspersa
# ##############################################################################
parse_hpacucli () {
   grep 'logicaldrive\|physicaldrive' /tmp/aspersa
}

# ##############################################################################
# Parse the output of arcconf, which should be stored in /tmp/aspersa
# ##############################################################################
parse_arcconf () {
   model=$(awk -F: '/Controller Model/{print $2}' /tmp/aspersa)
   chan="$(awk -F: '/Channel description/{print $2}' /tmp/aspersa)"
   cache="$(awk -F: '/Installed memory/{print $2}' /tmp/aspersa)"
   status="$(awk -F: '/Controller Status/{print $2}' /tmp/aspersa)"
   name_val Specs "${model/ /},${chan},${cache} cache,${status}"

   battery=$(grep -A5 'Controller Battery Info' /tmp/aspersa \
      | awk '/Capacity remaining/ {c=$4}
             /Status/             {s=$3}
             /Time remaining/     {t=sprintf("%dd%dh%dm", $7, $9, $11)}
             END                  {printf("%d%%, %s remaining, %s", c, t, s)}')
   name_val Battery "${battery}"

   # ###########################################################################
   # Logical devices
   # ###########################################################################
   echo
   echo "  LogicalDev Size      RAID Disks Stripe Status  Cache"
   echo "  ========== ========= ==== ===== ====== ======= ======="
   for dev in $(awk '/Logical device number/{print $4}' /tmp/aspersa); do
      sed -n -e "/^Logical device .* ${dev}$/,/^$\|^Logical device number/p" \
         /tmp/aspersa \
      | awk '
         /Logical device name/               {d=$5}
         /Size/                              {z=$3 " " $4}
         /RAID level/                        {r=$4}
         /Group [0-9]/                       {g++}
         /Stripe-unit size/                  {p=$4 " " $5}
         /Status of logical/                 {s=$6}
         /Write-cache mode.*Ena.*write-back/ {c="On (WB)"}
         /Write-cache mode.*Ena.*write-thro/ {c="On (WT)"}
         /Write-cache mode.*Disabled/        {c="Off"}
         END {
            printf("  %-10s %-9s %4d %5d %-6s %-7s %-7s\n",
               d, z, r, g, p, s, c);
         }'
   done

   # ###########################################################################
   # Physical devices
   # ###########################################################################
   echo
   echo "  PhysiclDev State   Speed         Vendor  Model        Size        Cache"
   echo "  ========== ======= ============= ======= ============ =========== ======="

   # Find the paragraph with physical devices, tabularize with assoc arrays.
   tempresult=""
   sed -n -e '/Physical Device information/,/^$/p' /tmp/aspersa \
      | awk -F: '
         /Device #[0-9]/ {
            device=substr($0, index($0, "#"));
            devicenames[device]=device;
         }
         /Device is a/ {
            devices[device ",isa"] = substr($0, index($0, "is a") + 5);
         }
         /State/ {
            devices[device ",state"] = substr($2, 2);
         }
         /Transfer Speed/ {
            devices[device ",speed"] = substr($2, 2);
         }
         /Vendor/ {
            devices[device ",vendor"] = substr($2, 2);
         }
         /Model/ {
            devices[device ",model"] = substr($2, 2);
         }
         /Size/ {
            devices[device ",size"] = substr($2, 2);
         }
         /Write Cache/ {
            if ( $2 ~ /Enabled .write-back./ )
               devices[device ",cache"] = "On (WB)";
            else
               if ( $2 ~ /Enabled .write-th/ )
                  devices[device ",cache"] = "On (WT)";
               else
                  devices[device ",cache"] = "Off";
         }
         END {
            for ( device in devicenames ) {
               if ( devices[device ",isa"] ~ /Hard drive/ ) {
                  printf("  %-10s %-7s %-13s %-7s %-12s %-11s %-7s\n",
                     devices[device ",isa"],
                     devices[device ",state"],
                     devices[device ",speed"],
                     devices[device ",vendor"],
                     devices[device ",model"],
                     devices[device ",size"],
                     devices[device ",cache"]);
               }
            }
         }'

}

# ##############################################################################
# Parse the output of "lsiutil -i -s" from /tmp/aspersa
# ##############################################################################
parse_fusionmpt_lsiutil () {
   echo
   awk '/LSI.*Firmware/ { print " ", $0 }' /tmp/aspersa
   grep . /tmp/aspersa | sed -n -e '/B___T___L/,$ {s/^/  /; p}'
}

# ##############################################################################
# Parse the output of MegaCli64 -AdpAllInfo -aALL from /tmp/aspersa.
# ##############################################################################
parse_lsi_megaraid_adapter_info () {
   name=$(awk -F: '/Product Name/{print substr($2, 2)}' /tmp/aspersa);
   int=$(awk '/Host Interface/{print $4}' /tmp/aspersa);
   prt=$(awk '/Number of Backend Port/{print $5}' /tmp/aspersa);
   bbu=$(awk '/^BBU             :/{print $3}' /tmp/aspersa);
   mem=$(awk '/Memory Size/{print $4}' /tmp/aspersa);
   vdr=$(awk '/Virtual Drives/{print $4}' /tmp/aspersa);
   dvd=$(awk '/Degraded/{print $3}' /tmp/aspersa);
   phy=$(awk '/^  Disks/{print $3}' /tmp/aspersa);
   crd=$(awk '/Critical Disks/{print $4}' /tmp/aspersa);
   fad=$(awk '/Failed Disks/{print $4}' /tmp/aspersa);
   name_val Model "${name}, ${int} interface, ${prt} ports"
   name_val Cache "${mem} Memory, BBU ${bbu}"
}

# ##############################################################################
# Parse the output (saved in /tmp/aspersa) of
# /opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL
# ##############################################################################
parse_lsi_megaraid_bbu_status () {
   charge=$(awk '/Relative State/{print $5}' /tmp/aspersa);
   temp=$(awk '/^Temperature/{print $2}' /tmp/aspersa);
   soh=$(awk '/isSOHGood:/{print $2}' /tmp/aspersa);
   name_val BBU "${charge}% Charged, Temperature ${temp}C, isSOHGood=${soh}"
}

# ##############################################################################
# Parse physical devices from the output (saved in /tmp/aspersa) of
# /opt/MegaRAID/MegaCli/MegaCli64 -LdPdInfo -aALL
# OR, it will also work with the output of
# /opt/MegaRAID/MegaCli/MegaCli64 -PDList -aALL
# ##############################################################################
parse_lsi_megaraid_devices () {
   echo
   echo "  PhysiclDev Type State   Errors Vendor  Model        Size"
   echo "  ========== ==== ======= ====== ======= ============ ==========="
   for dev in $(awk '/Device Id/{print $3}' /tmp/aspersa); do
      sed -e '/./{H;$!d;}' -e "x;/Device Id: ${dev}/!d;" /tmp/aspersa \
      | awk '
         /Media Type/                        {d=substr($0, index($0, ":") + 2)}
         /PD Type/                           {t=$3}
         /Firmware state/                    {s=$3}
         /Media Error Count/                 {me=$4}
         /Other Error Count/                 {oe=$4}
         /Predictive Failure Count/          {pe=$4}
         /Inquiry Data/                      {v=$3; m=$4;}
         /Raw Size/                          {z=$3}
         END {
            printf("  %-10s %-4s %-7s %6s %-7s %-12s %-7s\n",
               substr(d, 0, 10), t, s, me "/" oe "/" pe, v, m, z);
         }'
   done
}

# ##############################################################################
# Parse virtual devices from the output (saved in /tmp/aspersa) of
# /opt/MegaRAID/MegaCli/MegaCli64 -LdPdInfo -aALL
# OR, it will also work with the output of
# /opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -aAll
# ##############################################################################
parse_lsi_megaraid_virtual_devices () {
   # Somewhere on the Internet, I found the following guide to understanding the
   # RAID level, but I don't know the source anymore.
   #    Primary-0, Secondary-0, RAID Level Qualifier-0 = 0
   #    Primary-1, Secondary-0, RAID Level Qualifier-0 = 1
   #    Primary-5, Secondary-0, RAID Level Qualifier-3 = 5
   #    Primary-1, Secondary-3, RAID Level Qualifier-0 = 10
   # I am not sure if this is always correct or not (it seems correct).  The
   # terminology MegaRAID uses is not clear to me, and isn't documented that I
   # am aware of.  Anyone who can clarify the above, please contact me.
   echo
   echo "  VirtualDev Size      RAID Level Disks SpnDpth Stripe Status  Cache"
   echo "  ========== ========= ========== ===== ======= ====== ======= ========="
   awk '
      /^Virtual Disk:/ {
         device              = $3;
         devicenames[device] = device;
      }
      /Number Of Drives/ {
         devices[device ",numdisks"] = substr($0, index($0, ":") + 1);
      }
      /^Name:/ {
         devices[device ",name"] = $2 > "" ? $2 : "(no name)";
      }
      /RAID Level/ {
         devices[device ",primary"]   = substr($3, index($3, "-") + 1, 1);
         devices[device ",secondary"] = substr($4, index($4, "-") + 1, 1);
         devices[device ",qualifier"] = substr($NF, index($NF, "-") + 1, 1);
      }
      /Span Depth/ {
         devices[device ",spandepth"] = substr($2, index($2, ":") + 1);
      }
      /Number of Spans/ {
         devices[device ",numspans"] = $4;
      }
      /^Size:/ {
         devices[device ",size"] = substr($0, index($0, ":") + 1);
      }
      /^State:/ {
         devices[device ",state"] = $2;
      }
      /^Stripe Size:/ {
         devices[device ",stripe"] = $3;
      }
      /^Current Cache Policy/ {
         devices[device ",wpolicy"] = $4 ~ /WriteBack/ ? "WB" : "WT";
         devices[device ",rpolicy"] = $5 ~ /ReadAheadNone/ ? "no RA" : "RA";
      }
      END {
         for ( device in devicenames ) {
            raid = 0;
            if ( devices[device ",primary"] == 1 ) {
               raid = 1;
               if ( devices[device ",secondary"] == 3 ) {
                  raid = 10;
               }
            }
            else {
               if ( devices[device ",primary"] == 5 ) {
                  raid = 5;
               }
            }
            printf("  %-10s %-9s %-10s %5d %7s %6s %-7s %s\n",
               device devices[device ",name"],
               devices[device ",size"],
               raid " (" devices[device ",primary"] "-" devices[device ",secondary"] "-" devices[device ",qualifier"] ")",
               devices[device ",numdisks"],
               devices[device ",spandepth"] "-" devices[device ",numspans"],
               devices[device ",stripe"], devices[device ",state"],
               devices[device ",wpolicy"] ", " devices[device ",rpolicy"]);
         }
      }' /tmp/aspersa
}

# ##############################################################################
# Simplifies vmstat and aligns it nicely.  We don't need the memory stats, the
# system activity is enough.
# ##############################################################################
format_vmstat () {
   cat > /tmp/aspersa.awk <<-EOF
      BEGIN {
         format = "  %2s %2s  %4s %4s %5s %5s %6s %6s %3s %3s %3s %3s %3s\n";
      }
      /procs/ {
         print  "  procs  ---swap-- -----io---- ---system---- --------cpu--------";
      }
      /bo/ {
         printf format, "r", "b", "si", "so", "bi", "bo", "ir", "cs", "us", "sy", "il", "wa", "st";
      }
      \$0 !~ /r/ {
            fuzzy_var = \$1;   ${fuzzy_formula}  r   = fuzzy_var;
            fuzzy_var = \$2;   ${fuzzy_formula}  b   = fuzzy_var;
            fuzzy_var = \$7;   ${fuzzy_formula}  si  = fuzzy_var;
            fuzzy_var = \$8;   ${fuzzy_formula}  so  = fuzzy_var;
            fuzzy_var = \$9;   ${fuzzy_formula}  bi  = fuzzy_var;
            fuzzy_var = \$10;  ${fuzzy_formula}  bo  = fuzzy_var;
            fuzzy_var = \$11;  ${fuzzy_formula}  ir  = fuzzy_var;
            fuzzy_var = \$12;  ${fuzzy_formula}  cs  = fuzzy_var;
            fuzzy_var = \$13;                    us  = fuzzy_var;
            fuzzy_var = \$14;                    sy  = fuzzy_var;
            fuzzy_var = \$15;                    il  = fuzzy_var;
            fuzzy_var = \$16;                    wa  = fuzzy_var;
            fuzzy_var = \$17;                    st  = fuzzy_var;
            printf format, r, b, si, so, bi, bo, ir, cs, us, sy, il, wa, st;
         }
	EOF
      awk -f /tmp/aspersa.awk /tmp/aspersa
   }

# ##############################################################################
# The main() function is called at the end of the script.  This makes it
# testable.  Major bits of parsing are separated into functions for testability.
# As a general rule, we cannot 'cp' files from /proc, because they might be
# empty afterwards.  (I've seen 'cp /proc/cpuinfo' create an empty file.)  But
# 'cat' works okay.
# ##############################################################################
main () {

   # Begin by setting the $PATH to include some common locations that are not
   # always in the $PATH, including the "sbin" locations, and some common
   # locations for proprietary management software, such as RAID controllers.
   export PATH="${PATH}:/usr/local/bin:/usr/bin:/bin:/usr/libexec"
   export PATH="${PATH}:/usr/local/sbin:/usr/sbin:/sbin"
   export PATH="${PATH}:/usr/StorMan/:/opt/MegaRAID/MegaCli/";

   # Set up temporary files.
   temp_files "rm"
   temp_files "touch"
   section Aspersa_System_Summary_Report

   # ########################################################################
   # Grab a bunch of stuff and put it into temp files for later.
   # ########################################################################
   sysctl -a > /tmp/aspersa.sysctl 2>/dev/null

   # ########################################################################
   # General date, time, load, etc
   # ########################################################################
   platform="$(uname -s)"
   name_val "Date" "`date -u +'%F %T UTC'` (local TZ: `date +'%Z %z'`)"
   name_val "Hostname" "$(uname -n)"
   name_val "Uptime" "$(uptime | awk '{print substr($0, index($0, "up") + 3)}')"
   if which dmidecode > /dev/null 2>&1; then
      vendor="$(dmidecode -s system-manufacturer 2>/dev/null | sed 's/ *$//g')"
      if [ "${vendor}" ]; then
         product="$(dmidecode -s system-product-name 2>/dev/null | sed 's/ *$//g')"
         version="$(dmidecode -s system-version 2>/dev/null | sed 's/ *$//g')"
         chassis="$(dmidecode -s chassis-type 2>/dev/null | sed 's/ *$//g')"
         system="${vendor}; ${product}; v${version} (${chassis})"
         name_val "System" "${system}";
         servicetag="$(dmidecode -s system-serial-number 2>/dev/null | sed 's/ *$//g')"
         name_val "Service Tag" "${servicetag:-Not found}";
      fi
   fi
   name_val "Platform" "${platform}"
   if [ "${platform}" = "SunOS" ]; then
      if which zonename >/dev/null 2>&1 ; then
         name_val "Zonename" "$(zonename)"
      fi
   fi

   # Try to find all sorts of different files that say what the release is.
   if [ "${platform}" = "Linux" ]; then
      kernel="$(uname -r)"
      if [ -e /etc/fedora-release ]; then
         release=$(cat /etc/fedora-release);
      elif [ -e /etc/redhat-release ]; then
         release=$(cat /etc/redhat-release);
      elif [ -e /etc/system-release ]; then
         release=$(cat /etc/system-release);
      elif which lsb_release >/dev/null 2>&1; then
         release="$(lsb_release -ds) ($(lsb_release -cs))"
      elif [ -e /etc/lsb-release ]; then
         release=$(grep DISTRIB_DESCRIPTION /etc/lsb-release |awk -F'=' '{print $2}' |sed 's#"##g');
      elif [ -e /etc/debian_version ]; then
         release="Debian-based version $(cat /etc/debian_version)";
         if [ -e /etc/apt/sources.list ]; then
             code=`cat /etc/apt/sources.list |awk  '/^deb/ {print $3}' |awk -F/ '{print $1}'| awk 'BEGIN {FS="|"}{print $1}' | sort | uniq -c | sort -rn |head -n1 |awk '{print $2}'`
             release="${release} (${code})"
      fi
      elif ls /etc/*release >/dev/null 2>&1; then
         if grep -q DISTRIB_DESCRIPTION /etc/*release; then
            release=$(grep DISTRIB_DESCRIPTION /etc/*release | head -n1);
         else
            release=$(cat /etc/*release | head -n1);
         fi
      fi
   elif [ "${platform}" = "FreeBSD" ]; then
      release="$(uname -r)"
      kernel="$(sysctl -n kern.osrevision)"
   elif [ "${platform}" = "SunOS" ]; then
      release="$(head -n1 /etc/release)"
      if [ -z "${release}" ]; then
         release="$(uname -r)"
      fi
      kernel="$(uname -v)"
   fi
   name_val Release "${release}"
   name_val Kernel "${kernel}"

   CPU_ARCH='32-bit'
   OS_ARCH='32-bit'
   if [ "${platform}" = "Linux" ]; then
      if grep -q ' lm ' /proc/cpuinfo; then
         CPU_ARCH='64-bit'
      fi
   elif [ "${platform}" = "FreeBSD" ]; then
      if sysctl hw.machine_arch | grep -v 'i[36]86' >/dev/null; then
         CPU_ARCH='64-bit'
      fi
   elif [ "${platform}" = "SunOS" ]; then
      if isainfo -b | grep 64 >/dev/null ; then
         CPU_ARCH="64-bit"
      fi
   fi
   if file /bin/sh | grep '64-bit' >/dev/null; then
      OS_ARCH='64-bit'
   fi
   name_val "Architecture" "CPU = $CPU_ARCH, OS = $OS_ARCH"

   # Threading library
   if [ "${platform}" = "Linux" ]; then
      name_val Threading "$(getconf GNU_LIBPTHREAD_VERSION)"
   fi
   if [ -x /lib/libc.so.6 ]; then
      name_val "Compiler" "$(/lib/libc.so.6 | grep 'Compiled by' | cut -c13-)"
   fi

   if [ "${platform}" = "Linux" ]; then
      if getenforce >/dev/null 2>&1; then
         getenforce="$(getenforce 2>&1)";
      fi
      name_val "SELinux" "${getenforce:-No SELinux detected}";
   fi

   # We look in dmesg for virtualization information first, because it's often
   # available to non-root users and usually has telltale signs.  It's most
   # reliable to look at /var/log/dmesg if possible.  There are a number of
   # other ways to find out if a system is virtualized.
   cat /var/log/dmesg > /tmp/aspersa 2>/dev/null
   if [ ! -s /tmp/aspersa ]; then
      dmesg > /tmp/aspersa 2>/dev/null
   fi
   if [ -s /tmp/aspersa ]; then
      virt="$(parse_virtualization_dmesg)"
   fi
   if [ -z "${virt}" ]; then
      if which lspci >/dev/null 2>&1; then
         lspci > /tmp/aspersa 2>/dev/null
         if grep -qi virtualbox /tmp/aspersa; then
            virt=VirtualBox
         elif grep -qi vmware /tmp/aspersa; then
            virt=VMWare
         elif [ -e /proc/user_beancounters ]; then
            virt="OpenVZ/Virtuozzo"
         fi
      fi
   elif [ "${platform}" = "FreeBSD" ]; then
      if ps -o stat | grep J ; then
         virt="FreeBSD Jail"
      fi
   elif [ "${platform}" = "SunOS" ]; then
      if which prtdiag >/dev/null 2>&1 && prtdiag > /tmp/aspersa.prtdiag 2>/dev/null; then
         virt="$(parse_virtualization_generic /tmp/aspersa.prtdiag)"
      elif which smbios >/dev/null 2>&1 && smbios > /tmp/aspersa.smbios 2>/dev/null; then
         virt="$(parse_virtualization_generic /tmp/aspersa.smbios)"
      fi
   fi
   name_val Virtualized "${virt:-No virtualization detected}"

   # ########################################################################
   # Processor/CPU, Memory, Swappiness, dmidecode
   # ########################################################################
   section Processor
   if [ -f /proc/cpuinfo ]; then
      cat /proc/cpuinfo > /tmp/aspersa 2>/dev/null
      parse_proc_cpuinfo
   elif [ "${platform}" = "FreeBSD" ]; then
      parse_sysctl_cpu_freebsd /tmp/aspersa.sysctl
   elif [ "${platform}" = "SunOS" ]; then
      psrinfo -v > /tmp/aspersa
      parse_psrinfo_cpus /tmp/aspersa
      # TODO: prtconf -v actually prints the CPU model name etc.
   fi

   section Memory
   if [ "${platform}" = "Linux" ]; then
      free -b > /tmp/aspersa
      cat /proc/meminfo >> /tmp/aspersa
      parse_free_minus_b /tmp/aspersa
   elif [ "${platform}" = "FreeBSD" ]; then
      parse_memory_sysctl_freebsd /tmp/aspersa.sysctl
   elif [ "${platform}" = "SunOS" ]; then
      name_val Memory "$(prtconf | awk -F: '/Memory/{print $2}')"
   fi

   rss=$(ps -eo rss 2>/dev/null | awk '/[0-9]/{total += $1 * 1024} END {print total}')
   name_val UsedRSS "$(shorten ${rss} 1)"

   if [ "${platform}" = "Linux" ]; then
      name_val Swappiness "$(sysctl vm.swappiness 2>&1)"
      name_val DirtyPolicy "$(sysctl vm.dirty_ratio 2>&1), $(sysctl vm.dirty_background_ratio 2>&1)"
      if sysctl vm.dirty_bytes > /dev/null 2>&1; then
         name_val DirtyStatus "$(sysctl vm.dirty_bytes 2>&1), $(sysctl vm.dirty_background_bytes 2>&1)"
      fi
   fi

   if which dmidecode >/dev/null 2>&1 && dmidecode > /tmp/aspersa 2>/dev/null; then
      parse_dmidecode_mem_devices
   fi

   # ########################################################################
   # Disks, RAID, Filesystems
   # ########################################################################
   # TODO: Add info about software RAID

   if echo "${ASPERSA_SKIP}" | grep -v MOUNT >/dev/null; then
      if [ "${platform}" != "SunOS" ]; then
         section "Mounted_Filesystems"
         cmd="df -h"
         if [ "${platform}" = "Linux" ]; then
            cmd="df -h -P"
         fi
         $cmd | sort > /tmp/aspersa2
         mount | sort | join /tmp/aspersa2 - > /tmp/aspersa
         parse_filesystems /tmp/aspersa "${platform}"
      fi
   fi

   if [ "${platform}" = "Linux" ]; then
      section "Disk_Schedulers_And_Queue_Size"
      echo "" > /tmp/aspersa
      for disk in $(ls /sys/block/ | grep -v -e ram -e loop -e 'fd[0-9]'); do
         if [ -e "/sys/block/${disk}/queue/scheduler" ]; then
            name_val "${disk}" "$(cat /sys/block/${disk}/queue/scheduler | grep -o '\[.*\]') $(cat /sys/block/${disk}/queue/nr_requests)"
            fdisk -l "/dev/${disk}" >> /tmp/aspersa 2>/dev/null
         fi
      done

      # Relies on /tmp/aspersa having data from the Disk Schedulers loop.
      section "Disk_Partioning"
      parse_fdisk

      section "Kernel_Inode_State"
      for file in dentry-state file-nr inode-nr; do
         name_val "${file}" "$(cat /proc/sys/fs/${file} 2>&1)"
      done

      section "LVM_Volumes"

      if which lvs >/dev/null 2>&1 && test -x "$(which lvs)"; then
         lvs 2>&1
      else
         echo "Cannot execute 'lvs'";
      fi
   fi

   section "RAID_Controller"

   # ########################################################################
   # We look in lspci first because it's more reliable, then dmesg, because it's
   # often available to non-root users.  It's most reliable to look at
   # /var/log/dmesg if possible.
   # ########################################################################
   if which lspci >/dev/null 2>&1 && lspci > /tmp/aspersa 2>/dev/null; then
      controller="$(parse_raid_controller_lspci)"
   fi
   if [ -z "${controller}" ]; then
      cat /var/log/dmesg > /tmp/aspersa 2>/dev/null
      if [ ! -s /tmp/aspersa ]; then
         dmesg > /tmp/aspersa 2>/dev/null
      fi
      controller="$(parse_raid_controller_dmesg)"
   fi

   name_val Controller "${controller:-No RAID controller detected}"

   # ########################################################################
   # Attempt to get, parse, and print RAID controller status from possibly
   # proprietary management software.  Any executables that are normally stored
   # in a weird location, such as /usr/StorMan/arcconf, should have their
   # location added to $PATH at the beginning of main().
   # ########################################################################
   notfound=""
   if [ "${controller}" = "AACRAID" ]; then
      if arcconf getconfig 1 > /tmp/aspersa 2>/dev/null; then
         parse_arcconf
      elif ! which arcconf >/dev/null 2>&1; then
         notfound="e.g. http://www.adaptec.com/en-US/support/raid/scsi_raid/ASR-2120S/"
      fi
   elif [ "${controller}" = "HP Smart Array" ]; then
      if hpacucli ctrl all show config > /tmp/aspersa 2>/dev/null; then
         parse_hpacucli
      elif ! which hpacucli >/dev/null 2>&1; then
         notfound="your package repository or the manufacturer's website"
      fi
   elif [ "${controller}" = "LSI Logic MegaRAID SAS" ]; then
      if MegaCli64 -AdpAllInfo -aALL -NoLog > /tmp/aspersa 2>/dev/null; then
         parse_lsi_megaraid_adapter_info
      elif ! which MegaCli64 >/dev/null 2>&1; then
         notfound="your package repository or the manufacturer's website"
      fi
      if MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL -NoLog > /tmp/aspersa 2>/dev/null; then
         parse_lsi_megaraid_bbu_status
      fi
      if MegaCli64 -LdPdInfo -aALL -NoLog > /tmp/aspersa 2>/dev/null; then
         parse_lsi_megaraid_virtual_devices
         parse_lsi_megaraid_devices
      fi
   fi

   if [ "${notfound}" ]; then
      echo "   RAID controller software not found; try getting it from"
      echo "   ${notfound}"
   fi

   if echo "${ASPERSA_SKIP}" | grep -v NETWORK >/dev/null; then
      # #####################################################################
      # Network stuff
      # #####################################################################
      if [ "${platform}" = "Linux" ]; then
         section Network_Config
         if which lspci > /dev/null 2>&1 && lspci > /tmp/aspersa 2>/dev/null; then
            parse_ethernet_controller_lspci
         fi
         if sysctl net.ipv4.tcp_fin_timeout > /dev/null 2>&1; then
            name_val "FIN Timeout" "$(sysctl net.ipv4.tcp_fin_timeout)"
            name_val "Port Range" "$(sysctl net.ipv4.ip_local_port_range)"
         fi
      fi

      # TODO cat /proc/sys/net/ipv4/ip_conntrack_max ; it might be
      # /proc/sys/net/netfilter/nf_conntrack_max or /proc/sys/net/nf_conntrack_max
      # in new kernels like Fedora 12?

      if which ip >/dev/null 2>&1 && ip -s link > /tmp/aspersa 2>/dev/null; then
         section Interface_Statistics
         parse_ip_s_link /tmp/aspersa
      fi

      if [ "${platform}" = "Linux" ]; then
         section Network_Connections
         if netstat -antp > /tmp/aspersa 2>/dev/null; then
            parse_netstat
         fi
      fi
   fi

   # ########################################################################
   # Processes, load, etc
   # ########################################################################
   if echo "${ASPERSA_SKIP}" | grep -v PROCESS >/dev/null; then
      section Top_Processes
      if which prstat > /dev/null 2>&1; then
         prstat | head
      elif which top > /dev/null 2>&1 ; then
         cmd="top -bn 1"
         if [ "${platform}" = "FreeBSD" ]; then
            cmd="top -b -d 1"
         fi
         $cmd | sed -e 's# *$##g' -e '/./{H;$!d;}' -e 'x;/PID/!d;' | grep . | head
      fi
      if which vmstat > /dev/null 2>&1 ; then
         section "Simplified_and_fuzzy_rounded_vmstat_(wait_please)"
         vmstat 1 5 > /tmp/aspersa
         if [ "${platform}" = "Linux" ]; then
            format_vmstat
         else
            # TODO: simplify/format for other platforms
            cat /tmp/aspersa
         fi
      fi
   fi

   # ########################################################################
   # All done.  Signal the end so it's explicit.
   # ########################################################################
   temp_files "rm"
   temp_files "check"
   section The_End
}

# Execute the program if it was not included from another file.  This makes it
# possible to include without executing, and thus test.
if [ "$(basename "$0")" = "summary" ] || [ "$(basename "$0")" = "bash" -a "$_" = "$0" ]; then
    main $@
fi

这是我开发机器上的信息

# Aspersa System Summary Report ##############################
        Date | 2011-06-12 08:56:30 UTC (local TZ: CST +0800)
    Hostname | ubuntu1104-dev01
      Uptime | 2 days, 6:37, 2 users, load average: 0.00, 0.01, 0.05
      System | Dell Inc.; OptiPlex 990; v01 (Mini Tower)
 Service Tag | XXXXXXX
    Platform | Linux
     Release | Ubuntu 11.04 (natty)
      Kernel | 2.6.38-8-generic
Architecture | CPU = 64-bit, OS = 64-bit
   Threading | NPTL 2.13
     SELinux | No SELinux detected
 Virtualized | No virtualization detected
# Processor ##################################################
  Processors | physical = 1, cores = 4, virtual = 8, hyperthreading = yes
      Speeds | 7x1600.000, 1x2600.000
      Models | 8xIntel(R) Core(TM) i7-2600 CPU @ 3.40GHz
      Caches | 8x8192 KB
# Memory #####################################################
       Total | 15.66G
        Free | 13.08G
        Used | physical = 2.59G, swap = 0.00k, virtual = 2.59G
     Buffers | 175.48M
      Caches | 1.55G
       Dirty | 40 kB
     UsedRSS | 746.0M
  Swappiness | vm.swappiness = 60
 DirtyPolicy | vm.dirty_ratio = 10, vm.dirty_background_ratio = 5
 DirtyStatus | vm.dirty_bytes = 0, vm.dirty_background_bytes = 0
  Locator   Size     Speed             Form Factor   Type          Type Detail
  ========= ======== ================= ============= ============= ===========
  ChannelA-DIMM0 4096 MB  1333 MHz (0.8 ns) DIMM          {OUT OF SPEC} Synchronous
  ChannelA-DIMM1 4096 MB  1333 MHz (0.8 ns) DIMM          {OUT OF SPEC} Synchronous
  ChannelB-DIMM0 4096 MB  1333 MHz (0.8 ns) DIMM          {OUT OF SPEC} Synchronous
  ChannelB-DIMM1 4096 MB  1333 MHz (0.8 ns) DIMM          {OUT OF SPEC} Synchronous
# Mounted Filesystems ########################################
  Filesystem  Size Used Type       Opts                             Mountpoint
  /dev/sda1   902G   2% ext4       rw,errors=remount-ro,commit=0    /
  none        7.9G   0% devpts     rw,noexec,nosuid,gid=5,mode=0620 /var/lock
  none        7.9G   0% tmpfs      rw,nosuid,nodev                  /var/lock
  none        7.9G   0% devtmpfs   rw,mode=0755                     /var/lock
  none        7.9G   0% debugfs    rw                               /var/lock
  none        7.9G   0% securityfs rw                               /var/lock
  none        7.9G   0% sysfs      rw,noexec,nosuid,nodev           /var/lock
  none        7.9G   0% tmpfs      rw,noexec,nosuid,nodev           /var/lock
  none        7.9G   0% tmpfs      rw,nosuid,mode=0755              /var/lock
  none        7.9G   1% devpts     rw,noexec,nosuid,gid=5,mode=0620 /dev/shm
  none        7.9G   1% tmpfs      rw,nosuid,nodev                  /dev/shm
  none        7.9G   1% devtmpfs   rw,mode=0755                     /dev/shm
  none        7.9G   1% debugfs    rw                               /dev/shm
  none        7.9G   1% securityfs rw                               /dev/shm
  none        7.9G   1% sysfs      rw,noexec,nosuid,nodev           /dev/shm
  none        7.9G   1% tmpfs      rw,noexec,nosuid,nodev           /dev/shm
  none        7.9G   1% tmpfs      rw,nosuid,mode=0755              /dev/shm
  none        7.9G   1% devpts     rw,noexec,nosuid,gid=5,mode=0620 /dev
  none        7.9G   1% tmpfs      rw,nosuid,nodev                  /dev
  none        7.9G   1% devtmpfs   rw,mode=0755                     /dev
  none        7.9G   1% debugfs    rw                               /dev
  none        7.9G   1% securityfs rw                               /dev
  none        7.9G   1% sysfs      rw,noexec,nosuid,nodev           /dev
  none        7.9G   1% tmpfs      rw,noexec,nosuid,nodev           /dev
  none        7.9G   1% tmpfs      rw,nosuid,mode=0755              /dev
  none        7.9G   1% devpts     rw,noexec,nosuid,gid=5,mode=0620 /var/run
  none        7.9G   1% tmpfs      rw,nosuid,nodev                  /var/run
  none        7.9G   1% devtmpfs   rw,mode=0755                     /var/run
  none        7.9G   1% debugfs    rw                               /var/run
  none        7.9G   1% securityfs rw                               /var/run
  none        7.9G   1% sysfs      rw,noexec,nosuid,nodev           /var/run
  none        7.9G   1% tmpfs      rw,noexec,nosuid,nodev           /var/run
  none        7.9G   1% tmpfs      rw,nosuid,mode=0755              /var/run
# Disk Schedulers And Queue Size #############################
         sda | [cfq] 128
         sr0 | [cfq] 128
# Disk Partioning ############################################
Device       Type      Start        End               Size
============ ==== ========== ========== ==================
/dev/sda     Disk                            1000204886016
/dev/sda1    Part          1     119519       983069015040
/dev/sda2    Part     119519     121602        17133258240
/dev/sda5    Part     119519     121602        17133258240
# Kernel Inode State #########################################
dentry-state | 153236 143621 45 0 0 0
     file-nr | 5664 0 1601386
    inode-nr | 76942 2365
# LVM Volumes ################################################
Cannot execute 'lvs'
# RAID Controller ############################################
  Controller | Intel Corporation 82801 SATA RAID Controller (rev 04)
# Network Config #############################################
  Controller | Intel Corporation 82579LM Gigabit Network Connection (rev 04)
 FIN Timeout | net.ipv4.tcp_fin_timeout = 60
  Port Range | net.ipv4.ip_local_port_range = 32768 61000
# Interface Statistics #######################################
  interface  rx_bytes rx_packets  rx_errors   tx_bytes tx_packets  tx_errors
  ========= ========= ========== ========== ========== ========== ==========
  l        2000000000   12500000          0 2000000000   12500000          0
  eth       100000000     350000          0   12500000      80000          0
  vboxnet           0          0          0          0          0          0
# Network Connections ########################################
  Connections from remote IP addresses
    127.0.0.            2
    192.168.0.23        1
  Connections to local IP addresses
    127.0.0.            2
    192.168.0.24        1
  Connections to top 10 local ports
    22                  1
    4369                1
    45022               1
  States of connections
    ESTABLISHED         3
    LISTEN              8
# Top Processes ##############################################
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    1 root      20   0 24008 2212 1356 S    0  0.0   0:01.78 init
    2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd
    3 root      20   0     0    0    0 S    0  0.0   0:01.98 ksoftirqd/0
    5 root      20   0     0    0    0 S    0  0.0   0:00.25 kworker/u:0
    6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0
    7 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1
    8 root      20   0     0    0    0 S    0  0.0   0:03.52 kworker/1:0
    9 root      20   0     0    0    0 S    0  0.0   0:00.77 ksoftirqd/1
   11 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/2
# Simplified and fuzzy rounded vmstat (wait please) ##########
  procs  ---swap-- -----io---- ---system---- --------cpu--------
   r  b    si   so    bi    bo     ir     cs  us  sy  il  wa  st
   0  0     0    0     1     1     25      1   0   0  99   0    
   0  0     0    0     0     0    250    450   0   0 100   0    
   0  0     0    0     0   125    150    250   0   0  99   1    
   0  0     0    0     0     0    100    150   0   0 100   0    
   0  0     0    0     0     0    100    225   0   0 100   0    
# The End ####################################################