Linux Command
Look up a command, take a command line apart, check where it runs, translate it to another system, or list the ones worth knowing for a job.
Type a command name and get what it does, the flags worth knowing and a few worked examples.
Nothing asked yet. Pick a mode above and hit Ask.
Powered by DeepSeek (deepseek-v4-flash). Answers are generated, so check anything destructive against the man page before you run it.
Instructions
A Linux/Unix command reference that answers in your own words: what a command does, what each flag in a line does, which systems have it, what it looks like on another OS, and which commands to reach for when you need to know how a machine is doing.
- Pick a mode: Explain a command, Explain with parameters, OS support, Convert between OS or Common commands.
- Set OS to the system you are actually on — every answer is written for it, so
free -hon macOS is answered differently fromfree -hon Ubuntu. - Type the command in the box (Convert also wants a To OS; Common commands needs no command at all, just a Category).
- Hit Ask — or press Enter in the box. The answer replaces the pane below; Copy markdown takes the raw text.
Tips
- Explain a command takes a bare name (
rsync); Explain with parameters takes the whole line (tar -xzvf backup.tar.gz -C /var/www) and gives you a row per flag, bundled short flags split apart. - OS support answers with one table across all ten systems — built in, needs install, or not available — plus the nearest equivalent wherever it is missing. Useful before you put a command in a script that has to run on Alpine as well as Ubuntu.
- Common commands is the “how is this box doing” cheat sheet: pick Disk, Memory, Network, Docker, MySQL and the rest. It leads with read-only commands and flags the ones that change the system.
- While an answer is on its way, Stop cancels it — the route forwards its own signal to DeepSeek, so the upstream call is cancelled rather than merely ignored.
- Input is capped at 600 characters. The browser sends only the mode name, your command and the select values — the prompts live on the server, so this page is not an open AI proxy.
- The mode, the box, the selects and the last answer are kept in this browser's local storage and come back on reload; nothing is stored on the server.
- Replies come from a model, not from the man pages on your machine. Treat a destructive command as a suggestion to verify, not an instruction to paste.
- Hit Example, then click any highlighted mode tab — it switches to that mode, loads its sample and runs it.