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Terminal: Manual and Help

Unix has thousands of pages of help information. If you forget how to use a command or need to use some unusual options you can refer to the built-in documentation for help.

The main help command is "man" (manual). Type "man x" to get help on the command "x", for example type "man ls" to get help on the ls (list directory) command. Press space at the end of each page or type Q to quit from the man display.

If you don't know the name of the command you need try the "apropos" command. For example if you can't remember the command to terminate processes type "apropos terminate". You will see the kill command listed. You can now use "man kill" to get full details.

Related Tips

Disable Recent Applications in Dock
Other Dock Tricks
Reset Dock to Default Settings





I usually write a blog post about once a week. The latest post can be viewed here: Think for Yourself: In the end, everything is just an opinion. Be skeptical, and think for yourself! (posted 2026-04-25 at 21:12:02). Or go to the Home Page of My Blog to choose a post to view.

I do podcasts too! You can listen to my latest podcast, here: OJB's Podcast 2026-04-14 How Far is that Star?: How would we really know how big the universe is? Or subscribe to my podcast RSS feed, on my RSS Feeds page.

If you're not sure what to view from the thousands of pages on my site, here are some suggestions: My Latest Airshow Report (photos and movies from Warbirds Over Wanaka, 2026), My Favourite Wines and Beers (tasting notes for some of my favourites), An Interesting Astronomical Observation (learn a bit about astronomy from these observing notes), See Some Photos (A short rail journey through the Taieri Gorge), Read Some Mac Tips (Learn about how to use your Mac, and fix some problems).


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