MKDIR(1) BSD Reference Manual MKDIR(1)
mkdir - make directories
mkdir [-p] [-m mode] directory_name [...]
The mkdir utility creates the directories named as operands, in the order specified, using mode rwxrwxrwx (0777) as modified by the current umask(2). The options are as follows: -m mode Set the file permission bits of the final created directory to the specified mode. The mode argument can be in any of the for- mats specified to the chmod(1) utility. If a symbolic mode is specified, the operators '+' and '-' are interpreted relative to an initial mode of "a=rwx". -p Create intermediate directories as required. If this option is not specified, the full path prefix of each operand must already exist. Intermediate directories are created with permission bits of rwxrwxrwx (0777) as modified by the current umask, plus write and search permission for the owner. Do not consider it an error if the argument directory already exists. The user must have write permission in the parent directory. For an ex- planation of the directory hierarchy, see hier(7). The mkdir utility exits 0 on success or >0 if an error occurred.
Create a directory named foobar: $ mkdir foobar Create a directory named foobar and set its file mode to 700: $ mkdir -m 700 foobar Create a directory named cow/horse/monkey, creating any non-existent in- termediate directories as necessary: $ mkdir -p cow/horse/monkey
chmod(1), rmdir(1), umask(2), hier(7)
The mkdir utility is expected to be IEEE Std 1003.2 ("POSIX.2") compati- ble.
A mkdir command appeared in Version 1 AT&T UNIX. MirOS BSD #10-current January 25, 1994 1
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