mkdir: Make directories
mkdir creates directories with the specified names. Synopsis:
mkdir [option]… name…
mkdir creates each directory name in the order given.
It reports an error if name already exists, unless the
-p option is given and name is a directory.
The program accepts the following options. Also see Common options.
Set the file permission bits of created directories to mode,
which uses the same syntax as
chmod and uses ‘a=rwx’ (read, write and execute allowed for
everyone) for the point of the departure. See File permissions.
This option affects only directories given on the command line;
it does not affect any parents that may be created via the -p option.
Normally the directory has the desired file mode bits at the moment it is created. As a GNU extension, mode may also mention special mode bits, but in this case there may be a temporary window during which the directory exists but its special mode bits are incorrect. See Directory Setuid and Setgid, for how the set-user-ID and set-group-ID bits of directories are inherited unless overridden in this way.
Make any missing parent directories for each argument, setting their file permission bits to ‘=rwx,u+wx’, that is, with the umask modified by ‘u+wx’. Ignore existing parent directories, and do not change their file permission bits.
If the -m option is also given, it does not affect
file permission bits of any newly-created parent directories.
To control these bits, set the
umask before invoking
mkdir. For example, if the shell
command ‘(umask u=rwx,go=rx; mkdir -p P/Q)’ creates the parent
P it sets the parent’s file permission bits to ‘u=rwx,go=rx’.
(The umask must include ‘u=wx’ for this method to work.)
To set a parent’s special mode bits as well, you can invoke
mkdir. See Directory Setuid and Setgid, for how the set-user-ID and set-group-ID bits of
newly-created parent directories are inherited.
Print a message for each created directory. This is most useful with --parents.
Without a specified context, adjust the SELinux security context according
to the system default type for destination files, similarly to the
The long form of this option with a specific context specified,
will set the context for newly created files only.
With a specified context, if both SELinux and SMACK are disabled, a warning is
An exit status of zero indicates success, and a nonzero value indicates failure.