How to add users in bulk with shel script

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Scripts are often used in enterprises to manage a lot of users in batches, which can also be understood as automatic management. Prepare for automatic operation and maintenance deployment after the enterprise.

#! / bin/bash

# description:useradd

# Author by xxb-Andy.

# Date 11/8/2014

For i in `seq 1 20`; do

Useradd user$i

Echo user$i | passwd-- stdin user$i > / dev/null 2 > & 1

Chage-d 0 user$i

Done

20 users are added by default, and the user name and password are user$, first login users need to change the password forcefully.

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