Cheatsheet & Examples: passwd

Change Password for Current User

Example Usage:
passwd

What it does:
Changes the password for the current user.

Command-line Arguments Explained:

--stdin (optional): Reads password from standard input (not recommended for security).
--show (optional): Displays the password in a simplified format (e.g., *).
--no-e (optional): Disables password expiration.
--no-s (optional): Disables showing password in simple format.
--help (optional): Displays help information.
--version (optional): Displays version information.

Lock Account

Example Usage:
passwd -l

What it does:
Locks the current user account to prevent unauthorized access.

Command-line Arguments Explained:

-l (required): Locks the account.

Unlock Account

Example Usage:
passwd -u

What it does:
Unlocks a locked account.

Command-line Arguments Explained:

-u (required): Unlocks the account.

Set Password Expiration Date

Example Usage:
passwd -e

What it does:
Sets the password expiration date for the current user.

Command-line Arguments Explained:

-e (required): Sets the expiration date.
-x (optional): Sets the number of days until the password expires.
-n (optional): Sets the number of days before the password expires.

Delete Previous Password

Example Usage:
passwd -d

What it does:
Deletes the previous password and prompts for a new one.

Command-line Arguments Explained:

-d (required): Deletes the previous password.

Use Standard Input for Password

Example Usage:
passwd -stdin

What it does:
Reads the password from standard input (not recommended for security).

Command-line Arguments Explained:

-stdin (optional): Reads password from standard input.

Show Password in Simple Format

Example Usage:
passwd -s

What it does:
Displays the password in a simplified format (e.g., *).

Command-line Arguments Explained:

-s (optional): Shows password in simple format.

Change Password for Another User

Example Usage:
passwd -u <username>

What it does:
Changes the password for a specified user.

Command-line Arguments Explained:

-u (required): Specifies the user to change the password for.
<username> (optional): The username of the target user.

Set Password Expiration Days

Example Usage:
passwd -x <days>

What it does:
Sets the number of days until the password expires.

Command-line Arguments Explained:

-x (required): Sets the number of days until the password expires.
<days> (optional): The number of days.

Set Password Expiration Before Next Date

Example Usage:
passwd -n <days>

What it does:
Sets the number of days before the password expires.

Command-line Arguments Explained:

-n (required): Sets the number of days before the password expires.
<days> (optional): The number of days.

Cheatsheet & Examples: passwd

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Change Password for Current User

Lock Account

Unlock Account

Set Password Expiration Date

Delete Previous Password

Use Standard Input for Password

Show Password in Simple Format

Change Password for Another User

Set Password Expiration Days

Set Password Expiration Before Next Date

Command Palette

Comments

Common Tasks

Cheatsheet & Examples: userdel

More from this blog

Change Password for Current User

Lock Account

Unlock Account

Set Password Expiration Date

Delete Previous Password

Use Standard Input for Password

Show Password in Simple Format

Change Password for Another User

Set Password Expiration Days

Set Password Expiration Before Next Date