Linux Create User Account

Q. How do I create create a new Linux user account ? How do update or modify default Linux new user information? Using the command prompt (shell) tools, how do I add a user to the system? What are command line options for adding a user?

A. To create a new user account under any Linux distribution use command called useradd. The system administrator is responsible for creating account. Login as root user (or use sudo command).

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useradd command syntax

useradd [options] {username}

Depending on command line options, the useradd command will update system files (/etc/passwd and /etc/shadow file with password) and may also create the new user’s home directory and copy initial files.

Linux add a new user called rakhi

Type the command as follows:
useradd rakhi
Set a password for rakhi:
passwd rakhi
Without password user account will be in locked status. To unlock the account, you need to use above passwd command. Use passwd command to assign a password and set password aging guidelines.

Set account disable date

You can set date for the account to be disabled in the format YYYY-MM-DD with -e option while creating account itself:
useradd -e {yyyy-mm-dd} {username}
useradd -e 2008-12-31 jerry

Set default password expiry

The -f {days} option set number of days after the password expires until the account is disabled. (If 0 is specified, the account is disabled immediately after the password expires. If -1 is specified, the account is not be disabled after the password expires.)
useradd -f {days} {username}
useradd -e 2009-12-31 -f 30 jerry

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I'm Vivek Gite, and I write about Linux, macOS, Unix, IT, programming, infosec, and open source. Subscribe to my RSS feed or email newsletter for updates.

120 comments… add one
  • jagan May 24, 2014 @ 11:20

    Dear sir/madam how to use useradd & groupadd give with examples
    and syntax ..

  • Taylor Jun 26, 2014 @ 20:28

    Yes! Finally something about intend.

  • rajesh Oct 6, 2015 @ 5:02

    how can create local account in linux machine

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