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Top Forums UNIX for Advanced & Expert Users How to limit the search to 'n' occurrences within a line Post 302350228 by Vi-Curious on Thursday 3rd of September 2009 06:51:59 AM
Old 09-03-2009
Quote:
Originally Posted by Linuxee
Hello malcomex999, Vi-Curious,

~/Desktop$ perl -nle '{print $_ if scalar(@_ == $_ =~ /hello/g) == 2}' b.txt
<No OutPut here>
The reason there was no output was because the first occurrence of == in your example should have been just a single =. Others have already posted follow-up examples to your latest query so I'll just say that this would have printed the entire line if it contained exactly 2 occurrences of the search pattern. It wasn't clear from your initial post that you wanted to print out the first 2 occurrences of (only) the search pattern if it occurred 2 or more times in the line.
 

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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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