Quration AIQ

terminal

When you meet an unfamiliar command, there's something faster than Google built right into the terminal.

Which command opens the official manual?

man
man (manual) shows a command's full usage and options — try 'man grep.' Quit with q. Getting trapped inside a man page is everyone's rite of passage.
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terminal

What's the simplest way?What does the asterisk (*) do?Which symbol does that?Which one is it?What does a program like brew (Homebrew) actually do?What's the actual way to quit the terminal editor vim without saving?'Run the backup script at 3 a.m. every day' — which venerable Linux scheduler has handled jobs like this for decades?Which environment variable holds the list of folders the computer searches for commands?What's this feature called?Which command follows a file's tail and shows each new line as it arrives?Which command is the terminal's task manager, showing processes with live CPU and memory usage?What is it short for?

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