The Linux Juggernaut

Some times there will be a requirement for adding multiple users on servers. Using adduser/useradd command we can not create multiple user accounts in one shot. We can write a shell script to do this. But there is no need to write a script for this. There is an inbuilt Linux command called newusers which is used to create multiple users in batch mode. We will see both in this post.

Scenario 1: I want … Continue Reading

The linux password file location is in /etc. The password file has all the information you need to know about a user such as his username, UID, GID etc. There is one saying… if a beginner in Linux is able to create an entry in passwd file and create a user without using useradd command, he can do anything he wants on a Linux box to carry out something. There are total 7 fields in … Continue Reading

Q. I have a requirement to check whose accounts are expired in Linux machine and send a mail to root user about the accounts. How can i achieve this in Linux?

Ans : Here is the script to check the account expires of the users in Linux

#Created on:09-02-2010
#Last modified:02-05-2010
#Purpose:To check the user account status in Linux
#Author:Surendra Kumar Anne
#The below command will grep all the users in shadow file
#whose expiry … Continue Reading