Usually, quotas are enforced per user, as related to the proprietary of the file.
Is it possible to apply a quota on a folder basis, in such a way, that a folder contents are limited in disk space?
Answers:
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Method 1
Same question asked and answered over here:
https://stackoverflow.com/questions/8148715/how-to-set-limit-on-directory-size-in-linux
basically, make a virtual filesystem by filling a file with zeros to the size you want, then create a filesystem in that file and then loopmount it to the directory you want to limit.
Linux Quartly article about it here:
http://www.linuxquestions.org/questions/linux-server-73/directory-quota-601140/
Tutorial here:
http://souptonuts.sourceforge.net/quota_tutorial.html
All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0