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Update cheatsheets

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ivuorinen
2025-03-08 00:14:59 +00:00
parent a812b3c467
commit f8bee5305f
111 changed files with 540 additions and 310 deletions
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tldr/linux/journalctl
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@@ -8,21 +8,21 @@ source: https://github.com/tldr-pages/tldr.git
> Query the systemd journal.
> More information: <https://manned.org/journalctl>.
- Show all messages with priority level 3 (errors) from this [b]oot:
- Show all messages with priority level 3 (errors) from this boot:
`journalctl -b --priority=3`
`journalctl {{[-b|--boot]}} {{[-p|--priority]}} 3`
- Delete journal logs which are older than 2 days:
`journalctl --vacuum-time=2d`
`journalctl --vacuum-time 2d`
- Show only the last N li[n]es and [f]ollow new messages (like `tail -f` for traditional syslog):
- Show only the last N lines and follow new messages (like `tail -f` for traditional syslog):
`journalctl --lines {{N}} --follow`
`journalctl {{[-n|--lines]}} {{N}} {{[-f|--follow]}}`
- Show all messages by a specific [u]nit:
- Show all messages by a specific unit:
`journalctl --unit {{unit}}`
`journalctl {{[-u|--unit]}} {{unit}}`
- Show logs for a given unit since the last time it started:
@@ -30,7 +30,7 @@ source: https://github.com/tldr-pages/tldr.git
- Filter messages within a time range (either timestamp or placeholders like "yesterday"):
`journalctl --since {{now|today|yesterday|tomorrow}} --until "{{YYYY-MM-DD HH:MM:SS}}"`
`journalctl {{[-S|--since]}} {{now|today|yesterday|tomorrow}} {{[-U|--until]}} "{{YYYY-MM-DD HH:MM:SS}}"`
- Show all messages by a specific process: