第一个有点效用的 shell 模板

#!/bin/sh

if [ $1 = "--help" ]
then
echo -e "Usage: sudoch  MODE[,MODE]... FILE...\n\nFILE must be the Direct path\n\nEach MODE is of the form '[ugoa]*([-+=]([rwxXst]*|[ugo]))+'."
exit
fi

if [ $# -lt 2 ]
then
echo "usge command -authority -path"
exit
fi


File="$2"
authority="$1"
all="$@"
echo $File | grep -q '^/' || File=$PWD/$File

dir="/usr/local/ /usr/local/oiweb_qpay/cgi-bin /usr/local/ /data/sales_svr/"

for LINE in `echo $dir`
do
COUNT_CHAR=`echo "$LINE" | wc -c`
Substr="${File:0:$COUNT_CHAR-1}"

if [ "$Substr" = "$LINE" ]
then
flag="0"
chmod -R $all
break
fi
done
if [ "$flag" != "0" ]
then
echo "error: the path is not allowed to use the command"
fi

"/data/evegao/../"| sed 's/\/[^\/]*\/\.\.//g'