Provided by: systemd-cron_2.3.2-1build1_amd64 bug

NAME
       crontab — maintain crontab files for individual users


SYNOPSIS
       crontab [-u user] [newtab]
       crontab -l [-u user]
       crontab -r [-i] [-u user]
       crontab -e [-u user]
       crontab -s
       crontab -t line
       crontab -T crontab


DESCRIPTION
       crontab lets users install, uninstall, view, and edit recurrent jobs in the crontab(5) format, as well as
       pre-view and convert them to systemd.timer(5) pairs.  root may also spy on who which users have installed
       crontabs.

       Each  user  may  have their own crontab, but this can be limited by /etc/cron.allow to create an explicit
       allow-list or /etc/cron.deny to deny access to individual users.

       Crontabs are checked before installing — if they are found to be invalid, installation is aborted  and  a
       summary of errors is written to the standard error stream.


OPTIONS
       (by default)     replace the user's crontab from newtab (standard input stream if "-", the default).
       -l, --list       Copy user's crontab to the standard output stream, or error if there is none.
       -r, --remove     Remove user's crontab.
       -i, --ask        Output a confirmation prompt before doing so.
       -e, --edit       Let user edit crontab, install when they're done.
       -s, --show       List  which  users  have a crontab installed.  Nonexistent users are warned about to the
                        standard error stream.  Only root can do this.
       -t, --translate  Validate and translate a crontab(5) line into a  native  systemd.timer(5)  pair  to  the
                        standard output stream.
       -T, --test       Validate whether crontab is a valid crontab(5) file.

       -u, --user=user  Edit  user's  crontab instead of the currently-logged-in user's.  Only root can do this,
                        and they should be careful about using crontab without this option — the current user is
                        determined by $LOGNAME, $USER, $LNAME $USERNAME, and only then by the real UID!


FILES
       /etc/cron.allow           If exists, only users listed here (one username per line) can install their own
                                 crontabs.  Otherwise, everyone can.
       /etc/cron.deny            Users listed here aren't allowed to install their own crontabs.
       /var/spool/cron/crontabs  Crontabs live here.


ENVIRONMENT
       EDITOR, VISUAL, editor, vim, nano, and mcedit are tried, in order, when using -e.


SEE ALSO
       crontab(5), systemd.cron(7) for a summary of the format and how to tweak installed cronjobs  —  systemctl
       edit cron-schedule.{timer|service}.


LIMITATIONS
       SELinux is not supported.

systemd-cron 2.3.2-1build1                         2023-08-13                                         CRONTAB(1)