In a shell script, I'm looking for a way to pass the du (disk usage) result to a numeric variable, so that I cantie the execution of a shell script to the size of a specific folder. I've tried something like size=$(du -sh /folder) but this passes an alphanumeric value to the variable 'size', plus the name of the folder, which is obviously not what I want.

I'm using OSX, but I believe this is more of a bash/linux question. Has anybody an idea on how to achieve that? Thank you very much.


size=$(du -s xxx | awk '{print $1}') will give the disk usage in kB. To get real used bytes use du -sb --apparent-size xxx. See man du for details.

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  • Awesome, exactly what I needed. Thanks a lot Marki. – brunobhr Feb 22 '16 at 23:26

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