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Top Forums Shell Programming and Scripting Awk search for string pattern in delimited file Post 302442725 by alienated on Thursday 5th of August 2010 08:52:47 AM
Old 08-05-2010
Awk search for string pattern in delimited file

I've got a semicolon delimited file. I would like to search for fields that match a pattern, and not hardcoded eg "mth".
*th=something

If the delimited field fulfills this condition, eg. mth=value
I would like to print out both key and value for some number comparison.

eg. if value > "12" print "invalid mth"
if value > "0" && < 13 print "valid mth"

Is it possible to do this without reading the file by byte?

File that I have
Code:
LOG 

1997;Ford;E350;"ac;abs;moon";3000.00;
1999;Chevy;"Venture"";mth=/07;
xtendedEdition""";"";4900.00;
1999;Chevy;"Venture""ExtendedEdition;VeryLarge""";"";5000.00;
1996;Jeep;GrandCherokee;"MUSTSELL!;
air;month=08;loaded";4799.00;

1997;Ford;E350;"ac;abs;moon";3000.00;1999;Chevy;"Venture""Exte 
ndedEdition""";"";4900.001999;Chevy;"Venture""ExtendedEditi
on;VeryLarge""";"";5000.00
1996;Jeep;mth=Aug/2010;"MUSTSELL!
air;moonroof;loaded";4799.00

Output that I'm interested in
Code:
mth=/07
month=08

mth=Aug/2010

Thank you.
 

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Tcl_StringMatch(3)					      Tcl Library Procedures						Tcl_StringMatch(3)

__________________________________________________________________________________________________________________________________________________

NAME
Tcl_StringMatch, Tcl_StringCaseMatch - test whether a string matches a pattern SYNOPSIS
#include <tcl.h> int Tcl_StringMatch(str, pattern) int Tcl_StringCaseMatch(str, pattern, flags) ARGUMENTS
const char *str (in) String to test. const char *pattern (in) Pattern to match against string. May contain special characters from the set *?[]. int flags (in) OR-ed combination of match flags, currently only TCL_MATCH_NOCASE. 0 specifies a case-sensitive search. _________________________________________________________________ DESCRIPTION
This utility procedure determines whether a string matches a given pattern. If it does, then Tcl_StringMatch returns 1. Otherwise Tcl_StringMatch returns 0. The algorithm used for matching is the same algorithm used in the string match Tcl command and is similar to the algorithm used by the C-shell for file name matching; see the Tcl manual entry for details. In Tcl_StringCaseMatch, the algorithm is the same, but you have the option to make the matching case-insensitive. If you choose this (by passing TCL_MATCH_NOCASE), then the string and pattern are essentially matched in the lower case. KEYWORDS
match, pattern, string Tcl 8.5 Tcl_StringMatch(3)
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