Usually, when we talk of listing member of any unix group, let’s say, linux, then it really gets a bit complicated, there are number of ways to get the group members details as below 1. cat /etc/group 2. id [user_name] [...]
User Account
Create User in Linux from Command Line and Its Options
User administration is an important task for system administrator. This article discusses how to create new users in Linux and how the login details of a user can be customized while adding the user. Adding User Only root user can [...]
12:02 am
Linux "Usermod" Command to Modify User Details
The linux command “usermod” is used to modify a user’s information. The files that may be affected during this operation are /etc/passwd (user account information), /etc/shadow (secure account information) and /etc/group (group information). Only root/super user can use this command. [...]
12:27 pm
Learn How to List All Users in Linux
In Linux, you will be able to find two types of users; which are normal users (created using useradd command) and system users. Most of the system users are created while installing the OS which creates the users during various [...]
10:05 pm
Solution Linux Useradd Error - cannot lock /etc/passwd; try again later
Sometime in Linux when adding user using the useradd command it throws below error. #useradd test useradd: cannot lock /etc/passwd; try again later Answer The system files that are related to Linux user management are, /etc/passwd : Contains user account [...]
9:48 pm
Understand Each Entries Of Linux Shadow (/etc/shadow) File
In Linux, when you create a user (using useradd command) the account information such as username, UID, GID etc are stored in a system file /etc/passwd and secure account information such as encrypted password, last changed, expire date etc are [...]
9:50 pm
Linux /etc/passwd and Shadow File Formats Explained
On Linux systems, users accounts information including one-way encrypted passwords are kept in the text file /etc/passwd. When a user is created, it will update some system files such as /etc/passwd, /etc/shadow and /etc/group. The password files are an important cornerstone [...]
6:04 pm
How to use su Command in Linux
Linux is a multiuser Operating System kernel. Multiple users can login to a Linux system simultaneously. You can switch between different users on the command line itself with su command. The su command can switch between users. This command changes [...]
7:29 pm
How to Add User to Sudoers in Linux
Sudo access allows a user to execute all permitted commands as root or as any other user. Once the sudo access is given to a specific user in sudoers file, that user can execute the commands as root by executing [...]
9:06 pm
How to Disable User Accounts in Linux with Examples
Linux systems allow you to disable access to a particular user account without changing anything from the account. This might be useful if you do not want to remove user account permanently but, you just want it disabled and no [...]
7:20 pm