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FNMATCH(3)                 Linux Programmer's Manual                FNMATCH(3)

NAME
       fnmatch - match filename or pathname

SYNOPSIS
       #include <fnmatch.h>

       int fnmatch(const char *pattern, const char *string, int flags);

DESCRIPTION
       The  fnmatch()  function checks whether the string argument matches the
       pattern argument, which is a shell wildcard pattern (see glob(7)).

       The flags argument modifies the behavior; it is the bitwise OR of  zero
       or more of the following flags:

       FNM_NOESCAPE
              If  this  flag is set, treat backslash as an ordinary character,
              instead of an escape character.

       FNM_PATHNAME
              If this flag is set, match a slash in string only with  a  slash
              in  pattern  and  not  by an asterisk (*) or a question mark (?)
              metacharacter, nor by a bracket  expression  ([])  containing  a
              slash.

       FNM_PERIOD
              If  this  flag  is  set,  a  leading  period in string has to be
              matched exactly by a period in pattern.  A period is  considered
              to be leading if it is the first character in string, or if both
              FNM_PATHNAME is set and the period immediately follows a slash.

       FNM_FILE_NAME
              This is a GNU synonym for FNM_PATHNAME.

       FNM_LEADING_DIR
              If this flag (a GNU extension) is set, the pattern is considered
              to  be  matched if it matches an initial segment of string which
              is followed by a slash.  This flag is mainly  for  the  internal
              use of glibc and is implemented only in certain cases.

       FNM_CASEFOLD
              If  this  flag  (a GNU extension) is set, the pattern is matched
              case-insensitively.

       FNM_EXTMATCH
              If this flag (a GNU extension) is  set,  extended  patterns  are
              supported,  as  introduced  by  'ksh' and now supported by other
              shells.  The extended format is as  follows,  with  pattern-list
              being a '|' separated list of patterns.

       '?(pattern-list)'
              The  pattern  matches  if  zero or one occurrences of any of the
              patterns in the pattern-list match the input string.

       '*(pattern-list)'
              The pattern matches if zero or more occurrences of  any  of  the
              patterns in the pattern-list match the input string.

       '+(pattern-list)'
              The  pattern  matches  if  one or more occurrences of any of the
              patterns in the pattern-list match the input string.

       '@(pattern-list)'
              The pattern matches if exactly one occurrence of any of the pat-
              terns in the pattern-list match the input string.

       '!(pattern-list)'
              The  pattern  matches if the input string cannot be matched with
              any of the patterns in the pattern-list.

RETURN VALUE
       Zero if string matches pattern, FNM_NOMATCH if there is no match or an-
       other nonzero value if there is an error.

ATTRIBUTES
       For  an  explanation  of  the  terms  used  in  this  section,  see at-
       tributes(7).

       +----------+---------------+--------------------+
       |Interface | Attribute     | Value              |
       +----------+---------------+--------------------+
       |fnmatch() | Thread safety | MT-Safe env locale |
       +----------+---------------+--------------------+
CONFORMING TO
       POSIX.1-2001,  POSIX.1-2008,  POSIX.2.   The  FNM_FILE_NAME,  FNM_LEAD-
       ING_DIR, and FNM_CASEFOLD flags are GNU extensions.

SEE ALSO
       sh(1), glob(3), scandir(3), wordexp(3), glob(7)

COLOPHON
       This  page  is  part of release 5.05 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.

GNU                               2019-03-06                        FNMATCH(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON