umask

[jwantz at hpcc2.hpcc.noaa.gov]

Hi Steve,
Well umask is the exclusive or of the file permissions you want to assign 
to files by default.  E.g. umask 022 would assign file permissions of 755 
to your user files. Most sys admins use 022 and its the responsibility of 
the user to ensure their privacy if they have something sensitive.

    Jim Wantz WB0TFK