shell新增用户

#!/bin/bash
gname=$1
uname=$2
password=$3
echo "==========$gname,$uname,$password======"
#userdel $uname
isUserExist=` cat /etc/passwd|grep $uname|wc -l `
isGroupExist=` cat /etc/group|grep $gname|wc -l `
if [ $isGroupExist -eq 0 ];then
echo "groupadd $gname"
groupadd $gname
fi
if [ $isUserExist -eq 0 ];then
echo "useradd $uname"
useradd $uname -d /usr/$uname -p $password -g $gname
chown -R $uname:$gname /usr/$uname/
echo  $uname:$password | chpasswd
fi