52 lines
904 B
Markdown
52 lines
904 B
Markdown
---
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title: journalctl
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updated: 2021-09-11 08:09:53Z
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created: 2021-09-11 08:00:22Z
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latitude: 52.09370000
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longitude: 6.72510000
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altitude: 0.0000
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---
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# only errors
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`journalctl --utc`
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# vie emergency system messages
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`journalctl -p 0`
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# Error codes:
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0: emergency
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1: alerts
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2: critical
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3: errors
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4: warning
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5: notice
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6: info
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7: debug
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# shows all messages with priority 2, 1 and 0
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`journalctl -p 2`
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# errors at boot time
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`journalctl --list-boots`
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# errors with explanation
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`journalctl -xb -p 3`
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# show log from specific moment in time
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`journalctl --since "2020-12-04 06:00:00"`
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`journalctl --since yesterday`
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# kernel messages
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`journalctl -k`
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# Network messages
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`journalctl -u NetworkManager.service`
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# list of all services
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`systemctl list-units --type=service`
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# messages of an application
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`journalctl /usr/bin/docker --since today`
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[Source](https://www.debugpoint.com/2020/12/systemd-journalctl/) |