passwd is a command in Linux that is used to change a user’s password.

Here are some examples of how to use the passwd command:

• To change the password for the current user: passwd
• To change the password for a specific user: sudo passwd username
• To change the password for a user, but not require the user to provide their current password: sudo passwd -f username
• To change the password for a user and expire it immediately, forcing the user to create a new password at their next login: sudo passwd -e username
• To change the password for a user and also update the user’s account information (e.g. to change the user’s full name or home directory): sudo chpasswd

When you run the passwd command, you will be prompted to enter and confirm your new password. To be secure, the password should be at least 8 characters long and include a mix of uppercase and lowercase letters, numbers, and special characters.

It’s important to note that you should use sudo before the command if you’re not logged in as root or the user you want to change the password for.

Other Linux Commands

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124. parallel Command
125. passwd Command
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131. ping Command
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139. pwd Command
140. qalter Command
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230. Linux Commands and Examples