Name
fnmatch - match filename or pathnameLibrary
Standard C library ( libc ", " -lc )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 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.
Return Value
Zero if string matchespattern, FNM_NOMATCH if there is no match or another nonzero value if there is an error. Attributes
For an explanation of the terms used in this section, see attributes(7).| Interface | Attribute | Value |
| T} | Thread safety | MT-Safe env locale |
Standards
fnmatch() POSIX.1-2008.
FNM_FILE_NAME FNM_LEADING_DIR FNM_CASEFOLD GNU.
History
fnmatch() POSIX.1-2001, POSIX.2.