1、建立測試使用者

[root@linuxprobe home]# for i in liujiaxin{01..05};do useradd -g root $i;echo "123456" | passwd --stdin $i;done
##建立測試使用者，指定所屬組為root，密碼為123456
Changing password for user liujiaxin01.
passwd: all authentication tokens updated successfully.
Changing password for user liujiaxin02.
passwd: all authentication tokens updated successfully.
Changing password 
 
for user liujiaxin03.
passwd: all authentication tokens updated successfully.
Changing password for user liujiaxin04.
passwd: all authentication tokens updated successfully.
Changing password for user liujiaxin05.
passwd: all authentication tokens updated successfully.
[root@linuxprobe home]# groupadd liujiaxin06  ## 建立組
[root@linuxprobe home]# 
 
for i in liujiaxin{06..10};do useradd -g liujiaxin06 $i;echo "123456" | passwd --stdin $i;done
## 建立測試使用者，指定所屬組為liujiaxin06，密碼為123456
Changing password for user liujiaxin06.
passwd: all authentication tokens updated successfully.
Changing password for user liujiaxin07.
passwd: all authentication tokens updated successfully.
Changing password 
 
for user liujiaxin08.
passwd: all authentication tokens updated successfully.
Changing password for user liujiaxin09.
passwd: all authentication tokens updated successfully.
Changing password for user liujiaxin10.
passwd: all authentication tokens updated successfully.
[root@linuxprobe home]# for i in liujiaxin{01..10};do id $i;done ## 檢視所屬組
uid=1001(liujiaxin01) gid=0(root) groups=0(root)
uid=1002(liujiaxin02) gid=0(root) groups=0(root)
uid=1003(liujiaxin03) gid=0(root) groups=0(root)
uid=1004(liujiaxin04) gid=0(root) groups=0(root)
uid=1005(liujiaxin05) gid=0(root) groups=0(root)
uid=1006(liujiaxin06) gid=1001(liujiaxin06) groups=1001(liujiaxin06)
uid=1007(liujiaxin07) gid=1001(liujiaxin06) groups=1001(liujiaxin06)
uid=1008(liujiaxin08) gid=1001(liujiaxin06) groups=1001(liujiaxin06)
uid=1009(liujiaxin09) gid=1001(liujiaxin06) groups=1001(liujiaxin06)
uid=1010(liujiaxin10) gid=1001(liujiaxin06) groups=1001(liujiaxin06)