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umask
Original author(s)
AT&T Bell Laboratories
Developer(s)
Various open-source and commercial developers
Initial release
1978; 46 years ago (1978)
Operating system
Unix and Unix-like
Platform
Cross-platform
Type
Command
In computing, umask is a command that determines the settings of a mask that controls how file permissions are set for newly created files. It may also affect how the file permissions are changed explicitly. umask is also a function that sets the mask, or it may refer to the mask itself, which is formally known as the file mode creation mask. The mask is a grouping of bits, each of which restricts how its corresponding permission is set for newly created files. The bits in the mask may be changed by invoking the umask command.
In computing, umask is a command that determines the settings of a mask that controls how file permissions are set for newly created files. It may also...
specified, chmod will check the umask and the effect will be as if "a" was specified except bits that are set in the umask are not affected. Add write permission...
quiet,defaults,locale=en_US.utf8,umask=0,noexec 0 0 # Partition shared by Windows and Linux /dev/sda7 /mnt/shared vfat umask=000 0 0 # Mounting tmpfs tmpfs...
default 0002 umask allows new files to be edited by group. Sticky bit and SGID could be combined with something such as a read-only umask or an append...
Concurrent DOS, Multiuser DOS, System Manager and REAL/32. umask This option sets the umask to apply globally to all files in the volume. For example,...
needed]), exece, ioctl, lseek (previously only 24-bit offsets were available), umask, utime New library calls: The new stdio routines, malloc, getenv, popen/system...
Sends site specific commands to remote server (like SITE IDLE 60 or SITE UMASK 002). Inspect SITE HELP output for complete list of supported commands....
used as a command ulimit Misc Optional (XSI) Set or report file size limit umask Misc Mandatory Get or set the file mode creation mask System III unalias...
mitigated by setting the umask manually before calling mkstemp. Newer versions of the function create the file with the umask 600, so that only the owner...
in shared directories easier, by allowing users to habitually work with umask 0002. This way, newly created files can have by default write permissions...
cage. In the end, Zatura pinned Capitán Muerte, forcing Capitán Muerte to umask and reveal his real name, Guillermo Martinez Cid. The location at Calle...
file access and modification times. type — display a command name's path. umask — determines the settings of a mask that controls how file permissions are...
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