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Top Forums Shell Programming and Scripting Awk: Help with how to remove 4rth octet : Post 302771216 by RudiC on Wednesday 20th of February 2013 03:48:52 AM
Old 02-20-2013
Your awk program were working fine if you searched for the end of $3, represented by "$", instead of looking for whitespace which, being the field separator, was stripped off:
Code:
$ awk '{ sub(/\.[0-9]+$/,x,$3); print $2,$3}' file
cmiHOST06 10.26.107
cmiHOST05 10.26.12
cmiHOST05 10.26.1

This User Gave Thanks to RudiC For This Post:
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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