Linux commands: Vim Edit script Exercise

Practice One:

Add or remove users by accepting user-entered user names,./adminuser.sh --add User1,user2,jack,donggen means adding 4 users who are automatically entered, with the same password as the username entered

--del means to delete user-established user, and, the user that exists, need to prompt already exist the user that cannot add, does not exist

This user is not present when the deletion is prompted.

#!/bin/bash

#program:

#练习接收用户输入的用户名, decide to delete or add users

#history Donggen 2016-10-22-22:50

Path=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bash

Export PATH

If [$#-lt 1]; Then

echo "USAGE: + ARG"

Exit 5

Fi

if [= = = "--add"]; Then

For I in ' echo ' | Sed ' s/,//g '; Do

If ID $I &>/dev/null; Then

echo "$I is exist"

Else

Useradd $I &>/dev/null

echo "$I" | passwd--stdin $I &>/dev/null

echo "$I is add successful"

Fi

Done

elif [= = = "--del"]; Then

For I in ' echo ' | Sed ' s/,//g '; Do

If ID $I &>/dev/null; Then

Userdel-r $I

echo "$I is del successful"

Else

echo "NO such $I"

Fi

Done

Else

echo "UNknown symbol"

Fi

Exercise two,

Write a script that uses a combination test

if [$ = ' Q '-o $ = ' Q '-o $ = ' quit '-o $ = ' quit ']; Then

Ehco "Quiting ..."

Else

echo "Unknown symbol"

Fi

This article is from the "Learn Linux history" blog, please be sure to keep this source http://woyaoxuelinux.blog.51cto.com/5663865/1864827

Linux commands: Vim Edit script Exercise