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Full Discussion: Control-break"ish" in awk
Top Forums UNIX for Dummies Questions & Answers Control-break"ish" in awk Post 302932061 by beca123456 on Monday 19th of January 2015 01:11:16 AM
Old 01-19-2015
Control-break"ish" in awk
Hi,

input:
Code:
1|Bob
2|Bob
Ref|Bob
3|Rick
7|Rick
Ref|Rick

I am trying to append a "*" field to the record containing "Ref" in $1, only if the previous $1 with a common $2 have a value <4.

ouput:
Code:
1|Bob
2|Bob
Ref|Bob|*
3|Rick
7|Rick
Ref|Rick

The first subgroup ("Bob") shows $1 with only values <4, so a "*" is appended at the record "Ref".
The second subgroup ("Rick") shows one value >4 and is thus unchanged.

I read a couple of tutorials dealing with control-break programs, but they are all for counting (which is not my goal).

If someone could put me on track :-)

My attempt so far:
Code:
BEGIN{FS=OFS="|"}
{a[$2]++}
END{
   for(i in a){
      if($1 <4){
         if($1 ~ /Ref/){print $0 "|\*"}
      }
      else{print $0}
   }
}

Last edited by beca123456; 01-19-2015 at 02:19 AM..
 

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LEARN ABOUT DEBIAN

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 3.44 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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