Difference between revisions of "Journalctl"
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(Created page with "Journalctl command allows to query the contents of the systemd journal/logs. == Configuration == * <code>/etc/systemd/journald.conf</code> == Basic Commands == * <co...") |
(→Basic Commands: * <code>journalctl -xb</code>) |
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**--vacuum-time=TIME Remove journal files older than specified time | **--vacuum-time=TIME Remove journal files older than specified time | ||
* <code>journalctl --list-boots</code>. See also: <code>last (command)</code> | * <code>journalctl --list-boots</code>. See also: <code>last (command)</code> | ||
| + | * <code>journalctl -xb</code> | ||
==See also== | ==See also== | ||
Revision as of 06:33, 10 December 2019
Journalctl command allows to query the contents of the systemd journal/logs.
Configuration
/etc/systemd/journald.conf
Basic Commands
journalctl[1] orjournalctl --no-pagerjournalctl -r(reverse order)- journalctl -k : Show only kernel messages
journalctl -f(follow)journalctl -u service-name.service
journalctl -u libvirtd
journalctl --verify- Disk Usage/Logging:
/journalctl --disk-usage/ journalctl --vacuum-size=200M[2]- --vacuum-size=BYTES Reduce disk usage below specified size
- --vacuum-files=INT Leave only the specified number of journal files
- --vacuum-time=TIME Remove journal files older than specified time
journalctl --list-boots. See also:last (command)journalctl -xb
See also
- systemd and related daemons:
systemd,systemd-journald,systemd-logind,systemd-networkd(networkctl),systemd-timesyncd,systemd-resolvedandsystemd-udevd[3] /etc/inittab[4] andrespawnoption[5]systemctl- launchd init and operating system service management daemon for MacOS
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Source: https://en.wikiversity.org/wiki/Linux_Administration/System_Services/System_Logging/Journalctl
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