mkdir

mkdir --help
Usage: mkdir [OPTION]... DIRECTORY...
Create the DIRECTORY(ies), if they do not already exist.

Mandatory arguments to long options are mandatory for short options too.
  -m, --mode=MODE
         set file mode (as in chmod), not a=rwx - umask
  -p, --parents
         no error if existing, make parent directories as needed,
         with their file modes unaffected by any -m option
  -v, --verbose
         print a message for each created directory
  -Z
         set SELinux security context of each created directory
         to the default type
      --context[=CTX]
         like -Z, or if CTX is specified then set the
         SELinux or SMACK security context to CTX
      --help
         display this help and exit
      --version
         output version information and exit

Report bugs to: bug-coreutils@gnu.org
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Full documentation <https://www.gnu.org/software/coreutils/mkdir>
or available locally via: info '(coreutils) mkdir invocation'