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What command can I execute to check the directories inside a folder and if the total size of the directory is smaller than 30MB, delete it? I played around with the find command trying to move files based in the size but it didn't work properly.

I was using (for 1mb):

find . -size +102400k -exec mv DIRECTORY
find . -size -102400k -exec mv DIRECTORY
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If we're talking about directory size, I'm not sure find is going to help. du is going to have to be involved at some point.

Here's something I have written to find near directories under 30M:

du --max-depth 1 | awk -v q='"' '$1 < 30000000 && $2 != "." {sub(/^[0-9\t ]+/, "", $0); print q $0 q}'

You can then chain that into xargs rm -rf but I would test it very seriously before doing that. You might want to move the directories (with mv) instead of straight-up deleting them.

  • Hi Oli, I've tested this command and it just listed all directories ... sorry, I'm not really used with linux commands so maybe I had to do something else that I'm not aware. – Daniel Gomes Mar 29 '12 at 11:03
  • @DanielGomes You need to stick | xargs rm -rf on the end of that command... But as I say, please test the first part thoroughly first. – Oli Mar 29 '12 at 12:12
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Find doesn't know the total size of directories. So that approach won't work.

You could find all directories, and exec a script that uses du to see if they are smaller than 1MB.

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