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Full Discussion: Grepping for one variable while using awk to parse an associated variable
Top Forums UNIX for Beginners Questions & Answers Grepping for one variable while using awk to parse an associated variable Post 303042701 by ncwxpanther on Friday 3rd of January 2020 04:08:54 PM
Old 01-03-2020
Grepping for one variable while using awk to parse an associated variable
Im trying to search for a single variable in the first field and from that output use awk to extract out the lines that contain a value less than a value stored in another variable. Both the variables are associated with each other.

Any guidance is appreciated.

File that contains the variables
variables.txt

Code:
01001 63.9
01003 66.8
01005 64.8
01007 62.8

file-to-search.txt

Code:
01001 02  1900 65.6
01001 02  1901 60.6
01001 02  1902 62.6
....
01003  02  1900 65.1
01003  02  1901 65.3
01003  02  1902 67.3
....
01005  02  1900 64.7
01005  02  1901 65.2
01005  02  1902 65.2
...
01007  02  1900 64.8
01007  02  1901 63.8
01007  02  1902 62.7
....

I was using a for loop but realized that the resulting output was not correct.
Code:
county=$(awk '{ print $1 }' variables.txt)
val=$(awk '{ print $2 }' variables.txt)

for id in $county
do
grep "$id" file-to-search.txt | awk '$4 < $val { print $0 }' | tail -1 | awk '{print $1" " $3" " $4}'
done

What im hoping for is a file that looks like this
Code:
01001 1902 62.6
01003 1901 65.3
01005 1900 64.7
01007 1902 62.7

 

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LEARN ABOUT CENTOS

locale::codes::langfam

Locale::Codes::LangFam(3)				User Contributed Perl Documentation				 Locale::Codes::LangFam(3)

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
       constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

AUTHOR

       See Locale::Codes for full author history.

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

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

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

perl v5.16.3							    2013-02-27						 Locale::Codes::LangFam(3)
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