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Full Discussion: awk - mixed for and if to select particular lines in a data file
Top Forums Shell Programming and Scripting awk - mixed for and if to select particular lines in a data file Post 302829687 by Scrutinizer on Friday 5th of July 2013 02:58:04 PM
Old 07-05-2013
Another approach, assuming grouped values in the first column, but maintaining order of input file:
Code:
awk '!NF{next} p!=$1{if(s)print s; m=$2} $2<m{m=$2; s=$0}{p=$1} END{print s}' file

Last edited by Scrutinizer; 07-05-2013 at 04:06 PM..
 

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LEARN ABOUT LINUX

tzselect

TZSELECT(8)						    Linux System Administration 					       TZSELECT(8)

NAME

       tzselect - select a timezone

SYNOPSIS

       tzselect

DESCRIPTION

       The  tzselect  program asks the user for information about the current location, and outputs the resulting timezone description to standard
       output.	The output is suitable as a value for the TZ environment variable.

       All interaction with the user is done via standard input and standard error.

EXIT STATUS

       The exit status is zero if a timezone was successfully obtained from the user, nonzero otherwise.

ENVIRONMENT

       AWK    Name of a Posix-compliant awk program (default: awk).

       TZDIR  Name of the directory containing timezone data files (default: /usr/share/zoneinfo).

FILES

       TZDIR/iso3166.tab
	      Table of ISO 3166 2-letter country codes and country names.

       TZDIR/zone.tab
	      Table of country codes, latitude and longitude, TZ values, and descriptive comments.

       TZDIR/TZ
	      Time zone data file for timezone TZ.

SEE ALSO

       tzfile(5), zdump(8), zic(8)

COLOPHON

       This page is part of release 3.55 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

								    2007-05-18							       TZSELECT(8)
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