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Top Forums Shell Programming and Scripting finding number in exact column Post 302591490 by Corona688 on Thursday 19th of January 2012 03:49:56 PM
Old 01-19-2012
Quote:
Originally Posted by handsonzhao
Do I need a loop? Use foreach?
No, awk checks the expression against every line in the file, sort of like how grep does. But awk has comparisons and variables and all the things you need to actually write a program, where grep can only match and print lines.

Quote:
I have another question about it, that is ,when I get the number(416), how can I print out the number in the 3rd column of this row(928)?

Thanks!
Code:
awk '$1 == 416 { print $3 }' file

 

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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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