linux 获取指定目录最大深度（层数）02

脚本名：du_folder4.sh

脚本内容：

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#!/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"`

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

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

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

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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

}

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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"

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执行范例：

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[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

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说明：可以使用du 命令 来验证脚本du_folder4.sh的正确性。