How to compress multiple folders in the background, each into its own zip archive?

Question

I found that a great way to zip folders into their own zip files is through this loop:

for i in */; do zip -r "${i%/}.zip" "$i"; done

But I wanted to do this all in the background (e.g., nohup &), but I cannot get it to work. How do I do this?

replace zip -r "${i%/}.zip" "$i"; with nohup zip -r "${i%/}.zip" "$i" & - note in particular there is no semicolon after the & — icarus
– icarus, Commented Nov 10, 2019 at 2:01

Freddy · Accepted Answer · 2019-11-10 02:13:09Z

0

You could execute your commands as a shell script, e.g.

nohup sh -c 'for i in */; do zip -r "${i%/}.zip" "$i"; done' &

answered Nov 10, 2019 at 2:13

Freddy

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icarus · Accepted Answer · 2019-11-10 05:55:10Z

0

The request is to do the compression in parallel.

nohup sh -c 'for i in */; do zip -r "${i%/}.zip" "$i" & done' &

This will start one zip for each subdirectory. These jobs are started under a common nohup, which is itself backgrounded.

answered Nov 10, 2019 at 5:55

icarus

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2 Answers 2