mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-23 22:17:52 +08:00
50 lines
2.2 KiB
Plaintext
50 lines
2.2 KiB
Plaintext
\section umask umask - set or get the file-creation mask
|
|
|
|
\subsection umask-synopsis Synopsis
|
|
<code>umask [OPTIONS] [MASK]</code>
|
|
|
|
\subsection umask-description Description
|
|
|
|
With no argument, the current file-creation mask is printed, if an
|
|
argument is specified, it is the new file creation mask. The mask may
|
|
be specified as an octal number, in which case it is interpreted as
|
|
the rights that should be masked away, i.e. it is the inverse of the
|
|
file permissions any new files will have.
|
|
|
|
If a symbolic mask is specified, the actual file permission bits, and
|
|
not the inverse, should be specified. A symbolic mask is a comma
|
|
separated list of rights. Each right consists of three parts:
|
|
|
|
- The first part specifies to whom this set of right applies, and can
|
|
be one of \c u, \c g, \c o or \c a, where \c u specifies the user who
|
|
owns the file, \c g specifies the group owner of the file, \c o
|
|
specific other users rights and \c a specifies all three should be
|
|
changed.
|
|
- The second part of a right specifies the mode, and can be one of \c
|
|
=, \c + or \c -, where \c = specifies that the rights should be set to
|
|
the new value, \c + specifies that the specified right should be added
|
|
to those previously specified and \c - specifies that the specified
|
|
rights should be removed from those previously specified.
|
|
- The third part of a right specifies what rights should be changed
|
|
and can be any combination of \c r, \c w and \c x, representing
|
|
read, write and execute rights.
|
|
|
|
If the first and second parts are skipped, they are assumed to be \c a
|
|
and \c =, respectively. As an example, <code>r,u+w</code> means all
|
|
users should have read access and the file owner should also have
|
|
write access.
|
|
|
|
- <code>-h</code> or <code>--help</code> print this message
|
|
- <code>-S</code> or <code>--symbolic</code> prints the file-creation mask in symbolic form instead of octal form. Use <code>man chmod</code> for more information.
|
|
- <code>-p</code> or <code>--as-command</code> prints any output in a form that may be reused as input
|
|
|
|
The umask implementation in fish should behave identically to the one
|
|
in bash.
|
|
|
|
\subsection umask-example Example
|
|
|
|
<code>umask 177</code> or <code>umask u=rw</code> sets the file
|
|
creation mask to read and write for the owner and no permissions at
|
|
all for any other users.
|
|
|