Linux passwd command details how to use the Linux passwd command

The Linux passwd command is used to change the user's password.

Syntax

Passwd [-k] [-l] [-u [-f] [-d] [-S] [username]

Required parameters:

• -D. Delete the password.
• -F force execution
• -K updates can only be sent after expiration
• -L stop account use
• -S: Display password information
• -U: enable an account that has been stopped
• -X: Set the password validity period.
• -G: change the group password.
• -I: stops the user account after it expires.

Select parameters:

• -- Help: displays help information.
• -- Version: displays version information.

Instance

Change user password

# Passwd w3cschool // Set the password of the w3cschool user

Enter new UNIX password: // Enter the new password. The entered password is not displayed.

Retype new UNIX password: // confirm the password

Passwd: password updated successfully

#

Show account password information

# Passwd-S w3cschool

W3cschool P 05/13/2010 0 99999 7-1

Delete user password

# Passwd-d lx138

Passwd: password expiry information changed.