应用背景
假设要创建5个账号,分别是cakin{1,2,3,4,5},且这5个账号未来要想共享一个目录,因此应该加入通一个用户组,假设这个用户组为cakingroup,且这5个账号的密码均为password,那么如何创建这5个账号?
解决方案
第一步:创建useradd.sh脚本
[root@localhost ~]# pwd
/root
[root@localhost ~]# mkdir bin
[root@localhost ~]# cd /root/bin
[root@localhost bin]# vim useradd.sh
#!/bin/bash
groupadd cakingroup
for username in cakin1 cakin2 cakin3 cakin4 cakin5
do
useradd -G cakingroup $username
echo "password" | passwd --stdin $username
done
第二步:执行useradd.sh脚本
[root@localhost bin]# sh useradd.sh
Changing password for user cakin1.
passwd: all authentication tokens updated successfully.
Changing password for user cakin2.
passwd: all authentication tokens updated successfully.
Changing password for user cakin3.
passwd: all authentication tokens updated successfully.
Changing password for user cakin4.
passwd: all authentication tokens updated successfully.
Changing password for user cakin5.
passwd: all authentication tokens updated successfully.
第三步:利用id命令查询组的支持是否正确
[root@localhost bin]# id cakin1
uid=1001(cakin1) gid=1002(cakin1) groups=1002(cakin1),1001(cakingroup)
[root@localhost bin]# id cakin2
uid=1002(cakin2) gid=1003(cakin2) groups=1003(cakin2),1001(cakingroup)