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Top Forums UNIX for Dummies Questions & Answers Check for not null column in a pipe delimited file Post 302974888 by RudiC on Sunday 5th of June 2016 03:44:53 PM
Old 06-05-2016
How about making it a bit more flexible? Try
Code:
awk '
NR==1   {MX = split(CHK, T, ",")
        }
        {for (i=1; i<=MX; i++)
           if ($(T[i]) == "") print "column " T[i] " is null at line " NR
        }
' FS="|" CHK="3,5,6,7,8" file
column 3 is null at line 1
column 6 is null at line 3
column 7 is null at line 6


Last edited by RudiC; 06-05-2016 at 04:48 PM.. Reason: Overlooked the "pipe" delimiter request.
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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