unlink man page

Prolog

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

unlink — call the unlink() function

Synopsis

unlink file

Description

The unlink utility shall perform the function call:

unlink(file);

A user may need appropriate privileges to invoke the unlink utility.

Operands

The following operands shall be supported:

file
The pathname of an existing file.

Stdin

Not used.

Input Files

Not used.

Environment Variables

The following environment variables shall affect the execution of unlink:

LANG
Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume of POSIX.1‐2008, Section 8.2, Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.)
LC_ALL
If set to a non-empty string value, override the values of all the other internationalization variables.
LC_CTYPE
Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multi-byte characters in arguments).
LC_MESSAGES
Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error.
NLSPATH
Determine the location of message catalogs for the processing of LC_MESSAGES.

Asynchronous Events

Default.

Stderr

The standard error shall be used only for diagnostic messages.

Exit Status

The following exit values shall be returned:

0
Successful completion.
>0
An error occurred.

Consequences of Errors

Default.

The following sections are informative.

See Also

link, rm

The Base Definitions volume of POSIX.1‐2008, Chapter 8, Environment Variables

The System Interfaces volume of POSIX.1‐2008, unlink()

Info

2013 IEEE/The Open Group POSIX Programmer's Manual