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#1
04-17-2012
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Delete directory conditioned
Hi, I am trying to make a script that finds if inside a folder there are more than 2 subfolders; if so, I want to erase the older subfolder. I thought this would be useful: Code:
find /sdcard/backup -mtime +1 -exec rm-r {} /;But it only erases subfolders older than one day, and I would want that subfolders get erased if there are more than two, even if none of them is older than one day. How could I modify the command? Thanks for your help. Edit: Sorry, didn't use code tags
Last edited by Hammerhand; 04-17-2012 at 05:23 AM.. |
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#2
04-17-2012
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Any specifications on what criteria to pick those 2 sub directories? Top level I guess and age? Name?.. ?
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#3
04-17-2012
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I would want to erase the oldest, doesn't mean the name.
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#4
04-17-2012
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Assuming all directories are on the same level and you are using Linux or a Linux like OS, you can try this: Content: Code:
$ for a in /sdcard/backup/*; do stat --format="%n %y" $a; done /sdcard/backup/a 2012-04-17 18:00:00.000000000 +0200 /sdcard/backup/b 2012-04-17 01:00:00.000000000 +0200 /sdcard/backup/c 2012-04-17 11:00:00.000000000 +0200 /sdcard/backup/d 2012-04-17 23:00:00.000000000 +0200 Sorted: Code:
# for a in /sdcard/backup/*; do stat --format="%n %y" $a; done| sort -t" " -k2rn -k3rn -k4rn /sdcard/backup/d 2012-04-17 23:00:00.000000000 +0200 /sdcard/backup/a 2012-04-17 18:00:00.000000000 +0200 /sdcard/backup/c 2012-04-17 11:00:00.000000000 +0200 /sdcard/backup/b 2012-04-17 01:00:00.000000000 +0200 Sorted content but the latest, dir "d": Code:
for a in /sdcard/backup/*; do stat --format="%n %y" $a; done| sort -t" " -k2rn -k3rn -k4rn| awk 'NR>1 {print $1}'
/sdcard/backup/a
/sdcard/backup/c
/sdcard/backup/bFinally deleting those 3: Code:
# for a in /sdcard/backup/*; do stat --format="%n %y" $a; done| sort -t" " -k2rn -k3rn -k4rn| awk 'NR>1 {system("rm -r "$1)}'Trying the steps you can dry-run before deleting too much. |
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Hammerhand (04-17-2012) | ||
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#5
04-17-2012
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Wow, it's more complex that I thought. I will give a try. Thanks.
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#6
04-17-2012
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No, you are right, sorry. I was drifting away while testing out and thought about having additional levels etc.  not seeing the wood for the trees...Didn't think about much easier ls -t which does it all for us: Code:
cd /sdcard/backup; ls -t1 | awk 'NR>1 {system("rm -r "$1)}'Keep in mind that both solutions are looking for files in that directory, not only directories. So with rm -r you will get an error when encountering non-directory files. Last edited by zaxxon; 04-17-2012 at 09:02 AM.. |
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Hammerhand (04-17-2012) | ||
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