07-20-2011
the thing is that, if the files are cat, then i lose information about where the entries previously were (file 1 or file 2).
So, I would like to have matches only between entries from A and B files.
Furthermore, I can see that the problem has another dimension, the entry after the _ is not unique. Therefore, an additional way is to match the string between tabs 7 and 8 of the line where the XXXXX_XXXXX is.
I think this should be matched first and then, when this is matched, refine the matches according to the _XXXXX. If entries are not matched, these should not be included in the output...
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LEARN ABOUT REDHAT
fnmatch
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.
The flags argument modifies the behaviour; 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, for example, with a [] - sequence 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 only implemented in certain cases.
FNM_CASEFOLD
If this flag (a GNU extension) is set, the pattern is matched case-insensitively.
RETURN VALUE
Zero if string matches pattern, FNM_NOMATCH if there is no match or another non-zero value if there is an error.
CONFORMING TO
ISO/IEC 9945-2: 1993 (POSIX.2). The FNM_FILE_NAME, FNM_LEADING_DIR, and FNM_CASEFOLD flags are GNU extensions.
SEE ALSO
sh(1), glob(3), scandir(3), glob(7)
GNU
2000-10-15 FNMATCH(3)