journalctl -t CRON --since "today"
journalctl -t CRON --since "30 minutes ago"
journalctl -t CRON --since "2023-01-25"

0 4 * * * /home/user/make-backup.sh 2>&1 | logger -t backups
journalctl -t backups --since "today"
journalctl -t backups -f

0 4 * * * /home/user/make-backup.sh > /tmp/backups.log 2>&1
0 4 * * * /home/user/make-backup.sh 2>&1 | ts >> /tmp/backups.log

Shift-F2: Create a horizontal split.
Ctrl-F2: Create a vertical split.

Shift-­Lef­t/R­igh­t/U­p/Down: Move focus among splits.

Shift-­Alt­-Le­ft/­Rig­ht/­Up/Down: Resize a split.

Ctrl-F5: Reconnect ssh/gp­g/dbus sockets.

Shift-F6: Detach session and do not logout.

Shift-F11: Zoom into a split, zoom out of a split.

Alt-Pa­geU­p/P­ageDown: Enter and move through scroll­back.

docker buildx create --driver cloud <ORG>/<BUILDER_NAME>

mc find local/bucket --older-than 3d --exec "mc rm {}"
mc find local/bucket --larger 5m --older-than 1d --exec "mc rm {}"

ss -at '( dport = :22 or sport = :22 )'

CREATE USER 'exporter'@'%' IDENTIFIED BY 'XXXXXXXX' WITH MAX_USER_CONNECTIONS 3;
GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'%';