linux 获取指定目录最大深度（层数）
脚本名：du_folder2.sh
脚本内容：
#!/bin/sh
if [ -z "$1" ?];then
? ? echo "no argument";
exit 255
fi
?
?
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
}
?
?
#echo $?
target_folder="$1"
depth_max=1
for i in `find "$target_folder" -type d` ;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
#echo "$i --depth: $retval"
fi
done
echo "max depth:$depth_max"
