shell样例

#!/bin/sh

#######################################################################

# start the script (load the common library)

#######################################################################

# $#==>total parameters number $0:shell name $1:first parameter $*:get shell all parameter

# $$==>get current shell process number(PID)

# $!==>execute preview process number(PID)

# $*==>get all parameters, equals $1$2$3$4....

# $@==>get all parameters, equals "$1""$2"....

# $?==>get return value for preview command execute ,normal:0

 

_set()

{

LOCAL_LOG="${LOGDIR}/NNSwitch.log"

_RUNJAVA="${JAVA_HOME}/bin/java"

if [ ! -x "${_RUNJAVA}" ]; then

echo "${CLASSTYPE}" "java is no exist!"

return 1

fi

_CLASSPATH="$APP_ROOT/etc"

# _CLASSPATH="${_CLASSPATH}:$APP_ROOT/lib"

for file in $APP_ROOT/lib/*

  {

_CLASSPATH="${_CLASSPATH}:$file"

  }

 

JAVA_OPTS="-DNNSwitch -Dfile.encoding=gb18030 -Xms256m -Xmx256m

 

}

 

#com.baosight.iplatrules.poc.ump.runcommand.NetTelnetCmd \

_start()

{

_set

unset LANG

nohup "$_RUNJAVA" $JAVA_OPTS \

-classpath "${_CLASSPATH}" \

ColdNNodeAutoSwitch > ${LOCAL_LOG} 2>&1 &

echo "NNSwitch started"

return 0

}

 

_stop()

{

_PID=`GetPID "NNSwitch"`

if [ -z "${_PID}" ] ; then

return 1

else

kill ${_PID}

fi

echo "NNSwitch stoped"

return 0

}

 

 

################################################

# Name: GetPID

# Desc: outputs a list of process id matching $1

# Args: $1 -> the command name to look for

################################################

 

GetPID() {

 

    if [ -z "${1}" ] ; then

        printERROR "Insufficient Arguments."

        return 1

    fi

case `getOSName` in

   bsd|sunos|linux)

       PSOPTS="-auwx" ;;

   *)

       PSOPTS="-ef" ;;

esac

    /bin/ps $PSOPTS 2> /dev/null | grep -E "${1}" | grep -v grep | awk '{ print $2; }'

 

}

 

 

##############################################################

getOSName() {

    case `uname -s` in

        *BSD)

            echo bsd ;;

        SunOS)

            case `uname -r` in

                5.*) echo solaris ;;

                *) echo sunos ;;

            esac

            ;;

        Linux)

            echo linux ;;

        HP-UX)

            echo hpux ;;

        AIX)

            echo aix ;;

        *) echo unknown ;;

    esac

}

 

######################start######################################

LOGDIR=/opt/logs

cd ${LOGDIR}

 

if [ $# -ne 1 ]; then

    echo "`basename $0` start|stop"

    exit 10

fi

 

_ACTION=$1

 

if [ $? -ne 0 ]; then

exit 11

fi

 

######################################################################

#

# You must set the environment first

#

#######################################################################

 

if [ -z "$APP_ROOT" ]; then

APP_ROOT=$HOME/UMP_RULES; export APP_ROOT

fi

 

if [ -z "${JAVA_HOME}" ]; then

JAVA_HOME=/opt/jdk16;export JAVA_HOME

fi

 

#######################################################################

# start the instance (copied from the product startup script)

#######################################################################

 

case "${_ACTION}" in

"start")

_start

;;

"stop")

_stop

;;

esac

 

exit $?