Linux › Section M · User environments › Topic M.1
Startup file guidelines and elements
Every time you open a terminal, a few short files decide your command path, your prompt and the permissions of every file you create. Knowing what belongs in them, and what does not, keeps a user environment fast, safe and easy to repair.
In this topic
- Where the system meets the user
- Two guidelines: simple and readable
- The command path
- Worked example: adding a directory safely
- Never put the current directory in PATH
- The manual page path and the pager
- The prompt
- Worked example: reading a prompt
- Aliases: use sparingly
- The permissions mask
- Common mistakes to avoid
- Key takeaways
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