unlink
call the unlink () function
TLDR
Remove the specified file if it is the last link
SYNOPSIS
unlink file
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.
DESCRIPTION
The unlink utility shall perform the function call:
unlink( file );
A user may need appropriate privileges to invoke the unlink utility.
OPTIONS
None.
OPERANDS
The following operands shall be supported:
" file "10 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 "10 Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume of POSIX.1 Section 8.2,Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.)
" LC_ALL "10 If set to a non-empty string value, override the values of all the other internationalization variables.
" LC_CTYPE "10 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 "10
Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error.
" NLSPATH "10 Determine the location of message catalogs for the processing of LC_MESSAGES.
ASYNCHRONOUS EVENTS
Default.
STDOUT
None.
STDERR
The standard error shall be used only for diagnostic messages.
OUTPUT FILES
None.
EXTENDED DESCRIPTION
None.
EXIT STATUS
The following exit values shall be returned:
" 0" 6 Successful completion.
>0 6 An error occurred.
CONSEQUENCES OF ERRORS
Default.
Thefollowingsectionsareinformative.
APPLICATION USAGE
None.
EXAMPLES
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
SEE ALSO
link, rm The Base Definitions volume of POSIX.1 Chapter 8,Environment Variables The System Interfaces volume of POSIX.1 unlink ( )
