mkdir.1 (2010 09)

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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 -m has precedence

over

umask(1).

-p Intermediate directories are created as necessary. Otherwise, the full path preﬁx of

dirname must already exist.

mkdir requires write permission in the parent direc-

tory.

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.

Only

LINK_MAX subdirectories can be created (see limits (5)).

Access Control Lists - JFS File Systems Only

If the parent directory has an access control list (ACL, see aclv (5)), and that ACL contains default

entries, an ACL is created for the new directory, and the parent directory’s default entries are applied to

the new directory’s ACL, both as regular entries and as default entries.

EXTERNAL INFLUENCES

For information about the UNIX standard environment, see standards (5).

Environment Variables

LANG provides a default value for the internationalization variables that are unset or null. If

LANG is

unset or null, the default value of "C" (see lang(5)) is used. If any of the internationalization variables

contains an invalid setting,

mkdir will behave as if all internationalization variables are set to

C. See

environ (5).

LC_ALL If set to a non-empty string value, overrides the values of all the other internationalization vari-

ables.

LC_CTYPE determines the interpretation of text as single and/or multi-byte characters, the classiﬁcation

of characters as printable, and the characters matched by character class expressions in regular expres-

sions.

LC_MESSAGES determines the locale that should be used to affect the format and contents of diagnostic

messages written to standard error and informative messages written to standard output.

NLSPATH determines the location of message catalogues for the processing of LC_MESSAGES.

International Code Set Support

Single- and multi-byte character code sets are supported.

HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

Summary of content (2 pages)

PAGE 1
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.
PAGE 2
mkdir(1) mkdir(1) DIAGNOSTICS mkdir returns exit code 0 if all directories were created successfully. Otherwise, it prints a diagnostic and returns non-zero. mkdir returns exit code 0 if the -p option was specified, and all the specified directories now exist. If any of the intermediate directories do not have search or write permission (with the -p option), mkdir prints a diagnostic and returns non-zero.