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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?

migrated from stackoverflow.com Feb 28 '11 at 9:59

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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 .??*)
  • For example: umask u=rwx,g=rwx,o= sets the default settings to 0770. – tiago2014 Feb 28 '11 at 2:11

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