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。
