Handy Linux Commands Cheatsheet for developers: covers file operations, text processing, process management, and network troubleshooting. Searchable and categorized for quick reference. All local processing.
TL;DR: Free online Linux command cheat sheet covering file operations, text processing, process management, network troubleshooting, and permissions. Keyword search and category browsing. Runs locally.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
Usage Guide
Linux command cheatsheet: the five high-frequency categories — file operations, permissions, process inspection, network troubleshooting, system monitoring — organized by scenario. A local static page that works even when the server has no internet. Built for ops newcomers and developers checking a flag mid-task.
1. How to use it
- Browse by category (files / permissions / processes / network / system).
- Find the command for your scenario and copy it to the terminal.
- Pair with the man command for full parameter documentation.
2. Frequent lifesavers
- Disk full: df -h for partitions, du -sh * to find the big directories.
- Stuck process: ps aux | grep name for the PID, kill -9 PID to force-kill.
- Port occupied: lsof -i :port or netstat -tlnp to find the owning process.
3. A permission fundamental
chmod 755 means the owner reads, writes and executes while everyone else reads and executes — directories must carry the x bit before you can cd into them, which is why directories default to 755 and files to 644. When you hit Permission denied, inspect the permission bits with ls -l before reaching for sudo. Running everything as root is a bad habit; permission problems deserve permission solutions, not workarounds.
FAQ
Completely free with no registration. All command references load locally for instant lookup.
High-frequency ops categories: file operations, text processing, process management, network troubleshooting, and permissions.
Yes. Keyword search and category browsing help you locate commands by name or scenario keyword.