Linux batch User Creation and deletion tutorials, linux User Creation tutorials

Linux batch User Creation and deletion tutorials, linux User Creation tutorials

Create users in batches as follows:

First, you need to create a xxx.txt file and write the user you want to create in this text. Note: each user writes a line break.

Vim user.txt

User1

User2

User3

# Create a xxx. sh shell script, and then use the forcycle to traverse the created user.txt. The following is a shell script:

#! /Bin/bash

# Here I create shell scripts and txt files in the same directory. If they are not in the same directory, note the path

For user in 'cat user.txt'

Do

Useradd $ user

# Passwd -- stdin indicates no interaction. Enter the password directly.

Echo $ user | passwd -- stdin $ user & >>/dev/null

Echo "The user useradd success! "

Done

Delete users in batches

# After reading the above batch create users, it is easy to delete users in batches!

# The principle is basically the same, but a command is different, so I will not explain it much.

# The following is a shell script

#! /Bin/bash

Grep "/bin/bash"/etc/passwd | grep-v "root" | cut-d ":"-f 1> 2.txt

For user in $ (cat./2.txt)

Do

Userdel-r $ user

Echo "del $ user OK"

Done

Rm-rf 2.txt