tldr/pages/linux/journalctl.md

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2014-02-25 02:13:55 +00:00
# journalctl
> Query the systemd journal
- Show all messages from this boot
`journalctl -b`
- Show all messages from last boot
`journalctl -b -1`
- Follow new messages (like `tail -f` for traditional syslog)
`journalctl -f`
- Show all messages by a specific unit
`journalctl -u {{unit}}`
- Show all messages by a specific process
`journalctl _PID={{pid}}`
- Show all messages by a specific executable
`journalctl {{/path/to/executable}}`