mkdir(1) mkdir(1)

NAME
mkdir - make a directory

SYNOPSIS
mkdir [-p] [-m mode] dirname ...

DESCRIPTION
mkdir creates specified directories in mode 0777 (possibly altered by
umask unless specified otherwise by a -m mode option (see umask(1)).
Standard entries, . (for the directory itself) and .. (for its parent)
are created automatically. If dirname already exists, mkdir exits
with a diagnostic message, and the directory is not changed.

Options
mkdir recognizes the following command-line options:

-m mode After creating the directory as specified, the file
permissions are set to mode, which is a symbolic mode
string as defined for chmod (see chmod(1)). The
umask(1) has precedence over -m.

-p Intermediate directories are created as necessary.
Otherwise, the full path prefix of dirname must
already exist. mkdir requires write permission in
the parent directory.

For each directory name in the pathname prefix of the
dirname argument that is not the name of an existing
directory, the specified directory is created using
the current umask setting, except that the equivalent
of chmod u+wx is done on each component to ensure
that mkdir can create lower directories regardless of
the setting of umask. Each directory name in the
pathname prefix of the dirname argument that matches
an existing directory is ignored without error. If
an intermediate path component exists, but has
permissions set to prevent writing or searching,
mkdir fails with an error message.

If the -m option is used, the directory specified by
dirname (excluding directories in the pathname
prefix) is created with the permissions specified by
mode.
etc...