# setting the umask to define default permissions for created files

• on a cluster I get

$umask 0022$ touch test
$ls -l test -rw-r--r-- 1 perrinet.l invibe 0 Nov 28 11:32 test$ umask u=rwx,g=rwx,o=
$touch test2$ ls -l test2
-rw-rw---- 1 perrinet.l invibe 0 Nov 28 11:33 test2

• so I did:

perrinet.l@frioul:~$vim .profile # ~/.profile: executed by the command interpreter for login shells. # This file is not read by bash(1), if ~/.bash_profile or ~/.bash_login # exists. # see /usr/share/doc/bash/examples/startup-files for examples. # the files are located in the bash-doc package. # the default umask is set in /etc/profile; for setting the umask # for ssh logins, install and configure the libpam-umask package. #umask 022 # https://en.wikipedia.org/wiki/Umask umask u=rwx,g=rwx,o= # if running bash if [ -n "$BASH_VERSION" ]; then
# include .bashrc if it exists
if [ -f "$HOME/.bashrc" ]; then . "$HOME/.bashrc"
fi
fi

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then PATH="$HOME/bin:$PATH" fi • before loging out I have perrinet.l@frioul:~$ umask
0022

• and after

perrinet.l@frioul:~$logout Connection to frioul.int.univ-amu.fr closed. [11:36:49]int-users-4-058: ~/Desktop/Dropbox/TROPIQUE/demos/12-11-11_projection$ frioul

######  #####      #     ####   #    #  #
#       #    #     #    #    #  #    #  #
#####   #    #     #    #    #  #    #  #
#       #####      #    #    #  #    #  #
#       #   #      #    #    #  #    #  #
#       #    #     #     ####    ####   ######

perrinet.l@frioul:~$umask 0007 perrinet.l@frioul:~$ touch test
perrinet.l@frioul:~$ls -l test -rw-rw---- 1 perrinet.l invibe 0 Nov 28 11:37 test perrinet.l@frioul:~$

• Done!