What are other passwd options?

The passwd command has several options that can be used to manage user passwords and accounts. Here are some commonly used options:

-d: Deletes the password for the specified user, effectively allowing passwordless login.
```
sudo passwd -d username
```
-l: Locks the specified user account, preventing the user from logging in.
```
sudo passwd -l username
```
-u: Unlocks a previously locked user account.
```
sudo passwd -u username
```
-e: Forces the user to change their password at the next login.
```
sudo passwd -e username
```
-n: Sets the minimum number of days between password changes.
```
sudo passwd -n days username
```
-x: Sets the maximum number of days a password is valid before it must be changed.
```
sudo passwd -x days username
```
-w: Sets the number of days before password expiration during which the user is warned.
```
sudo passwd -w days username
```
-i: Sets the number of days after a password expires until the account is permanently disabled.
```
sudo passwd -i days username
```

These options allow administrators to manage user passwords and account statuses effectively.