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Top Forums UNIX for Dummies Questions & Answers awk command not replacing in first line Post 302955967 by max_hammer on Thursday 24th of September 2015 09:22:12 AM
Old 09-24-2015
awk command not replacing in first line

As per requirement if column 2 is NULL then 'N' ELSE 'Y'.

I have written below awk code. But it is not replacing values for first line. Smilie

Code:
cat temp.txt  
1|abc|3  
1||4  
1|11|c

Code:
 awk -F'|' '{if($2==""){$2="N"}else{$2="Y"} print $0 } {OFS="|"} '  <  temp.txt  

1 Y 3  
1|N|4  
1|Y|c

 

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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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