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Top Forums Shell Programming and Scripting Awk: print lines with one of multiple pattern in the same field (column) Post 302884448 by elgo4 on Monday 20th of January 2014 11:46:42 AM
Old 01-20-2014
great! I knew there had to be a simple and elegant way!

---------- Post updated at 11:46 AM ---------- Previous update was at 11:43 AM ----------

Quote:
Originally Posted by Yoda
If you are looking for pattern match and not for a strict comparison, use ~ operator:
Code:
awk '$3 ~ /A/ || $3 ~ /B/' file.txt

So it looks like this one will return lines with "AB" and "BA" as well as "A" and "B."

Whereas

awk '$3=="A";$3=="B" {print $0}' file.txt

will return only lines that exactly match "A" and "B."

Getting "AB" and "BA" also is actually exactly what I needed (without realizing it initially!). Thanks, all!
 

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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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