$tail
Output the last part (bottom lines) of files or stream real-time logs.
tail [OPTIONS] [FILE...]Essayer en direct dans le bac à sable interactif
Simulation côté client sans installation avec retour instantané.
Aperçu et fonctionnement
`tail` displays the final lines of files (default: 10 lines). With the `-f` (follow) flag, `tail` remains open and continuously streams new log lines to your terminal in real-time as they are written by web servers, databases, and background services.
Options et drapeaux courants
| Flag / Option | Description |
|---|---|
| -n [NUM] | Output the last NUM lines instead of the default 10. |
| -f | Follow mode; continuously output appended data as the file grows. |
| -F | Follow mode with retry; keeps tracking file even if rotated or recreated. |
Exemples pratiques du monde réel
tail -n 10 /var/log/auth.logPrints the most recent authentication attempts.
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