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FNMATCH(3) Linux Programmer's Manual FNMATCH(3)
fnmatch - match filename or pathname
#include <fnmatch.h>
int fnmatch(const char *pattern, const char *string, int flags);
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 patterns 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.
Zero if string matches pattern, FNM_NOMATCH if there is no match
or another nonzero value if there is an error.
For an explanation of the terms used in this section, see
attributes(7).
┌───────────────────────────┬───────────────┬────────────────────┐
│Interface │ Attribute │ Value │
├───────────────────────────┼───────────────┼────────────────────┤
│fnmatch() │ Thread safety │ MT-Safe env locale │
└───────────────────────────┴───────────────┴────────────────────┘
POSIX.1-2001, POSIX.1-2008, POSIX.2. The FNM_FILE_NAME,
FNM_LEADING_DIR, and FNM_CASEFOLD flags are GNU extensions.
sh(1), glob(3), scandir(3), wordexp(3), glob(7)
This page is part of release 5.13 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 2021-03-22 FNMATCH(3)
Pages that refer to this page: find(1), systemctl(1), glob(3), scandir(3), wordexp(3), glob(7), ss(8)
Copyright and license for this manual page
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