1UNLINK(1P)                 POSIX Programmer's Manual                UNLINK(1P)
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PROLOG

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

12       unlink — call the unlink() function
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SYNOPSIS

15       unlink file
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DESCRIPTION

18       The unlink utility shall perform the function call:
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21           unlink(file);
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23       A user may need appropriate privileges to invoke the unlink utility.
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OPTIONS

26       None.
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OPERANDS

29       The following operands shall be supported:
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31       file      The pathname of an existing file.
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STDIN

34       Not used.
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INPUT FILES

37       Not used.
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ENVIRONMENT VARIABLES

40       The following environment  variables  shall  affect  the  execution  of
41       unlink:
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43       LANG      Provide  a  default  value for the internationalization vari‐
44                 ables that are unset or null. (See the Base Definitions  vol‐
45                 ume  of POSIX.1‐2017, Section 8.2, Internationalization Vari‐
46                 ables for the precedence  of  internationalization  variables
47                 used to determine the values of locale categories.)
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49       LC_ALL    If  set  to  a non-empty string value, override the values of
50                 all the other internationalization variables.
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52       LC_CTYPE  Determine the locale for the interpretation of  sequences  of
53                 bytes of text data as characters (for example, single-byte as
54                 opposed to multi-byte characters in arguments).
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56       LC_MESSAGES
57                 Determine the locale that should be used to affect the format
58                 and  contents  of  diagnostic  messages  written  to standard
59                 error.
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61       NLSPATH   Determine the location of message catalogs for the processing
62                 of LC_MESSAGES.
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ASYNCHRONOUS EVENTS

65       Default.
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STDOUT

68       None.
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STDERR

71       The standard error shall be used only for diagnostic messages.
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OUTPUT FILES

74       None.
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EXTENDED DESCRIPTION

77       None.
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EXIT STATUS

80       The following exit values shall be returned:
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82        0    Successful completion.
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84       >0    An error occurred.
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CONSEQUENCES OF ERRORS

87       Default.
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89       The following sections are informative.
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APPLICATION USAGE

92       None.
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EXAMPLES

95       None.
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RATIONALE

98       None.
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FUTURE DIRECTIONS

101       None.
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SEE ALSO

104       link, rm
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106       The  Base  Definitions  volume  of POSIX.1‐2017, Chapter 8, Environment
107       Variables
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109       The System Interfaces volume of POSIX.1‐2017, unlink()
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112       Portions of this text are reprinted and reproduced in  electronic  form
113       from  IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
114       table Operating System Interface (POSIX), The Open Group Base  Specifi‐
115       cations  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of
116       Electrical and Electronics Engineers, Inc and The Open Group.   In  the
117       event of any discrepancy between this version and the original IEEE and
118       The Open Group Standard, the original IEEE and The Open Group  Standard
119       is  the  referee document. The original Standard can be obtained online
120       at http://www.opengroup.org/unix/online.html .
121
122       Any typographical or formatting errors that appear  in  this  page  are
123       most likely to have been introduced during the conversion of the source
124       files to man page format. To report such errors,  see  https://www.ker‐
125       nel.org/doc/man-pages/reporting_bugs.html .
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129IEEE/The Open Group                  2017                           UNLINK(1P)
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