SHELL

how to set umask in linux

umask # shows current octal permissions mode
umask -S # human readable notation
u=rwx, g=rx, o=rx
umask 002 # set new octal permission mode
 	  ugo
# 	 0 -> read, write and execute
#    1 -> read and write
#    2 -> read and execute
#    3 -> only read
#    4 -> write and execute
#    5 -> only write
#    6 -> only execute
# 	 7 -> no permissions
umask g+r # set global rol to read

how to set umask in bashrs in linux

cd
umask 0027 >> .bashrc