Name
passwd
Synopsis
passwd [options
] [user
]
Create or change a password associated with a user name. Only the owner or a privileged user may change a password. Owners need not specify their user name. Users can change their own passwords. For all other operations, you must be root.
Options
- -d, --delete
Delete the password for the user’s account.
- -f, --force
Force the operation. Overrides -u.
- -?, --help
Display a help message describing the options. See also --usage.
- -i days, --inactive=days
Set the number of days after a password has expired before the account is disabled.
- -k, --keep-tokens
Keep passwords (authentication tokens) that have not expired.
- -l, --lock
Lock the user’s account.
- -n days, --minimum=days
Set the minimum number of days that the password is valid.
- -S, --status
Print the status of the user’s password.
- --stdin
Read new passwords from standard input.
- -u, --unlock
Unlock the user’s account
- --usage
Display a brief usage message. See also --help.
- -w days, --warning=days
Set the number of days of warning users will get before their password expires.
- -x days, --maximum=days
Set the maximum number of days that the password is valid.
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