umask

Display or set file mode mask.

Sets the user file-creation mask to MODE. If MODE is omitted, prints the current value of the mask.

If MODE begins with a digit, it is interpreted as an octal number; otherwise it is a symbolic mode string like that accepted by chmod.

• umask [EN] @ Wikipedia

Documentation

• umask [EN] @ GNU Bash Reference Manual

• bash -c 'help umask'
• man 1 'bash' [EN]

Further Information

• Set a custom umask in macOS (25.06.2020) [EN] @ Apple

Syntax

umask [PARAMETER ...] [MODE]

Parameters

-S

Makes the output symbolic; otherwise an octal number is output.

Examples

Get and set umask

umask

Output:

0022

touch 'test1'
ls -l 'test1'

Output:

-rw-r--r-- 1 alex alex 0 May  7 15:46 test1

umask 0007
touch 'test2'
ls -l 'test2'

Output:

-rw-rw---- 1 alex alex 0 May  7 15:50 test2