Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I work in a shared computing environment and the default setting is r-x for group and others; it's upto the users to change this. I can chmod and change the permissions for all the files. However any new files created all have the default permissions. Is there anyway to change that so that I don't have to chmod everytime or run chmod as a cronjob?

share|improve this question

migrated from Feb 28 '11 at 9:59

This question came from our site for professional and enthusiast programmers.

up vote 8 down vote accepted

The setting you're looking for is called the umask, and that's also the name of the command that changes it. To make a persistent change, add a umask command to your shell startup file -- probably named .profile or .bash_profile, in your home directory; if you don't seem to have any such file, post the output of these commands:

$ grep $LOGNAME /etc/passwd
$ (cd; ls -ld .??*)
share|improve this answer
For example: umask u=rwx,g=rwx,o= sets the default settings to 0770. – tiago2014 Feb 28 '11 at 2:11
thanks, I've set my umask correctly now. – Anonymous Feb 28 '11 at 2:19

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.