linux 获取指定目录最大深度（层数）02

脚本名：du_folder4.sh

脚本内容：

 

#!/bin/sh

folder_name="$1"

if [ ! -d "$folder_name" ];then

echo "The dir(\"${folder_name}\") does not exist!"

exit 3

fi

this_dir_tmp=`pwd`

# ./test(relative path) --->/home/whuang/du_study2/test

folder_name=`echo "$folder_name"|sed "s#^./#$this_dir_tmp/#g"`

 

# test(relative path) --->/home/whuang/du_study2/test

folder_name=`echo "$folder_name"|sed "s#^\([a-zA-Z]\+.*\)#$this_dir_tmp/\1#g"`

#----------------------------

 

depth_foler()

{

        this_dir=`pwd`

        source_folder="$1"

        source_folder=`echo $source_folder |sed 's#/$##g'`

        test_folder="$2"

        cd $test_folder

        count=0

        while [ ! `pwd` = $source_folder ]

        do

                count=`expr $count + 1`

                cd ..

        done

        cd $this_dir

        return $count

}

 

target_folder="$folder_name"

depth_max=1

for i in `du "$target_folder"` ;do

        if [ -d $i -a ! $i = $target_folder ];then

                depth_foler "$target_folder" "$i"

                retval=$?

                if [ $depth_max -lt $retval ];then

                        depth_max=$retval

                fi

        fi

done

echo "max depth: $depth_max"

 

执行范例：

 

[root@localhost du_study2]# ./du_folder4.sh  /home/whuang/du_study2/test

max depth: 3

[root@localhost du_study2]# ./du_folder4.sh  ./test

max depth: 3

[root@localhost du_study2]# ./du_folder4.sh  test

max depth: 3

[root@localhost du_study2]# du test

4 test/bbb/aaa/ccc

8 test/bbb/aaa

12 test/bbb

16 test

 

说明：可以使用du 命令 来验证脚本du_folder4.sh的正确性。