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umask [nnn ]
umask [-S ] [mask ]

Display file creation mask or set file creation mask to octal value nnn . The file creation mask determines which permission bits are turned off (e.g., umask 002 produces rw-rw-r-- ). See the entry in Chapter 2 for examples.

The second form is specific to ksh93 . A symbolic mask is permissions to keep.



Print the current mask using symbolic notation. ksh93 only.

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Reference: ulimit Book Index Reference: unalias

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