[root@source files]# grep -i root /etc/sudoers
## the root user, without needing the root password.
## Allow root to run any commands anywhere
root ALL=(ALL) ALL
aaa 192.168.8.101=(root) ALL
yy 192.168.8.101=(root) ALL
xx 192.168.8.101=(root) ALL
ff 192.168.8.101=(root) ALL
dd 192.168.8.101=(root) ALL
ee 192.168.8.101=(root) ALL
cc 192.168.8.101=(root) ALL
yidong ALL=(root) ALL
bb 192.168.8.101=(root) NOPASSWD:ALL
aa 192.168.8.101=(root) ALL
## cdrom as root
@@@@@@@@@@@@@@@@@@@@脚本内容如下：################
[root@source files]# cat users.sh
#!/bin/bash
ipaddress=$(ifconfig eth0 |awk '/\<inet\>/{print $2}')
##设定没有输入参数脚本退出
if [ $# -eq 0 ]
then
echo "未输入任何参数！！"
echo "$0:usage error"
exit 1
elif grep -q $1 /etc/passwd
then
echo "$1已存在于用户配置文件/etc/passwd中，创建$1忽略！！"
exit 3
else
useradd $1
echo $2 |passwd --stdin $1
fi
##设定sudoers配置文件
num=$(grep -c ^$1 /etc/sudoers)
if [ $num -ne 0 ]
then
echo "该$1已在/etc/sudoers配置文件中，已配置忽略！！"
else
sed -i '/^root/a '$1' '$ipaddress'=(root) ALL' /etc/sudoers
sleep 3
grep ^$1 /etc/sudoers && echo "$1配置成功" || echo "$1配置失败"
fi
@@@@@@@@@@@@@@@@@@@@@@@@@脚本内容结束####################
@@创建用户测试：
[root@source files]# id gg
id: gg: no such user
[root@source files]# sh users.sh gg 123456
Changing password for user gg.
passwd: all authentication tokens updated successfully.
gg 192.168.8.101=(root) ALL
gg配置成功
[root@source files]# grep -i gg /etc/sudoers
gg 192.168.8.101=(root) ALL
[root@source files]#
