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Useful built-in macOS command-line utilities

(weiyen.net)
837 points yen223 | 2 comments | 06 Nov 24 05:51 UTC | HN request time: 0.001s | source
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vbezhenar ◴[06 Nov 24 08:24 UTC] No.42058069[source]▶
Few additions.

open -n file.pdf : opens new instance of Preview application which is useful if you want to open the same file twice (for example to look at different pages at once).

caffeinate -d : prevents display turning off, useful if you want to look at display without moving mouse.

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1. beancookies ◴[06 Nov 24 21:25 UTC] No.42069659[source]▶
Another useful caffeinate tip is the `-w` option.

You can use it to pass a pid to keep the computer awake until that process completes. I use it for longer-running scripts that I don't want interrupted

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2. justinsaccount ◴[07 Nov 24 13:05 UTC] No.42076298[source]▶
That's mostly what `caffeinate your-script` is for.