Use ISO timestamps

bash

journalctl -o short-iso

Explanation

Better for copy/paste and incident timelines.

Learn the surrounding workflow

Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

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Emit journal entries in JSON format.

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Human-readable JSON output.

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Inspect space used by journal files.

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Delete archived journals until under size limit.

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Delete archived logs older than a time window.

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Check journal file integrity.

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