Linux › Section B · Basic commands and the directory hierarchy › Topic B.9
Understanding error messages
When something fails on Linux, the error message usually tells you exactly what went wrong and where. Learning to read it carefully, and to recognise the handful of errors you will meet again and again, turns most problems into quick fixes.
In this topic
- Read the message first
- Anatomy of an error message
- Where the reason comes from
- File and directory errors
- Permission and command errors
- Full disks and crashed programs
- Worked example: following a path
- Worked example: where access stops
- Work through problems methodically
- Common mistakes to avoid
- Key takeaways
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