journalctl
N/A
journalctl
journalctl · N/A · journalctl · JUR-nul-kon-trol · systemd journal viewer · Linux · logging · linux · forensicsLinuxsystemd journal viewer/JUR-nul-kon-trol/
Also known as: systemd journal viewer
Last updated August 9, 2026
Definition
journalctl queries the systemd journal — the structured log store on most modern Linux systems — for troubleshooting and forensics.
Real-World Example
journalctl -u ssh --since today to review SSH authentication events.
References
Related terms
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