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Full Discussion: awk compare column with date format
Top Forums Shell Programming and Scripting awk compare column with date format Post 302546088 by sigh2010 on Wednesday 10th of August 2011 11:41:40 AM
Old 08-10-2011
awk compare column with date format
I have this code to compare columns 1 and 10 between file1 and file 2 and give me all records that match column 1 but dont match column 10

However column 10 is date format mm/dd/yy and awk cant read it and compare ...i tried
Code:
awk < file1 -F~ '{print $10}'

and it gave blank screen

Is there a way to modify code to read dates and do the compare so the awk works properly
Code:
awk -F~ 'NR==FNR{A[NR]=$1$10;next}$1$10!=A[FNR]'

thanks

---------- Post updated at 07:41 AM ---------- Previous update was at 06:51 AM ----------

FYI

file1
Code:
25480820~a~b~c~d~e~f~g~h~09/10/09
26701789~a~b~c~d~e~f~g~h~12/06/10
26701789~a~b~c~d~e~f~g~h~03/28/13
22907330~a~b~c~d~e~f~g~h~07/29/11

file2
Code:
25480820~a~b~c~d~e~f~g~h~09/10/09
25480820~a~b~c~d~e~f~g~h~11/12/10
26701789~a~b~c~d~e~f~g~h~12/06/10
26701789~a~b~c~d~e~f~g~h~01/11/11
26701789~a~b~c~d~e~f~g~h~03/28/13
22907330~a~b~c~d~e~f~g~h~07/29/11
22907330~a~b~c~d~e~f~g~h~10/22/09
22907330~a~b~c~d~e~f~g~h~04/22/14

desired output
Code:
25480820~a~b~c~d~e~f~g~h~11/12/10
26701789~a~b~c~d~e~f~g~h~01/11/11
22907330~a~b~c~d~e~f~g~h~10/22/09
22907330~a~b~c~d~e~f~g~h~04/22/14

Last edited by Franklin52; 08-10-2011 at 06:29 PM.. Reason: Correcting code tags
 

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LEARN ABOUT DEBIAN

locale::language

Locale::Language(3perl) 				 Perl Programmers Reference Guide				   Locale::Language(3perl)

NAME

       Locale::Language - standard codes for language identification

SYNOPSIS

	  use Locale::Language;

	  $lang = code2language('en');	      # $lang gets 'English'
	  $code = language2code('French');    # $code gets 'fr'

	  @codes   = all_language_codes();
	  @names   = all_language_names();

DESCRIPTION

       The "Locale::Language" module provides access to standard codes used for identifying languages, such as those as defined in ISO 639.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639 two-
       letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying languages. The ones currently supported are:

       alpha-2
	   This is the set of two-letter (lowercase) codes from ISO 639, such as 'he' for Hebrew.

	   This code set is identified with the symbol "LOCALE_LANG_ALPHA_2".

	   This is the default code set.

       alpha-3
	   This is the set of three-letter (lowercase) bibliographic codes from ISO 639, such as 'heb' for Hebrew.

	   This code set is identified with the symbol "LOCALE_LANG_ALPHA_3".

       term
	   This is the set of three-letter (lowercase) terminologic codes from ISO 639.

	   This code set is identified with the symbol "LOCALE_LANG_TERM".

ROUTINES

       code2language ( CODE [,CODESET] )
       language2code ( NAME [,CODESET] )
       language_code2code ( CODE ,CODESET ,CODESET2 )
       all_language_codes ( [CODESET] )
       all_language_names ( [CODESET] )
       Locale::Language::rename_language  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Language::add_language  ( CODE ,NAME [,CODESET] )
       Locale::Language::delete_language  ( CODE [,CODESET] )
       Locale::Language::add_language_alias  ( NAME ,NEW_NAME )
       Locale::Language::delete_language_alias	( NAME )
       Locale::Language::rename_language_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Language::add_language_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Language::delete_language_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.loc.gov/standards/iso639-2/
	   Source of the ISO 639 codes.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-09-26						   Locale::Language(3perl)
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