How to search for a word in column header that fully matches the word not partially in awk? Post: 303037424

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Top Forums UNIX for Beginners Questions & Answers How to search for a word in column header that fully matches the word not partially in awk? Post 303037424 by RudiC on Thursday 1st of August 2019 07:11:01 AM

08-01-2019

Registered User

Not sure where to begin... - OK, let's try:

You're missing the multicolumn text file as an input to awk, so it doesn't know what to operate on.
Your awk code doesn't have a print statement, so nothing will be printed. So your result of 1 or 2 is a bit surprising. If it printed something, then the (desired) result for the given contents of hdr array should be 2 and 4, for the two elements as indicated.
Your pattern check $0 ~ col is quite unspecific, it will trigger on any occurrence of the pattern also later in the file - you may want to confine the action to the first line only.
It's not clear what the heading, colhdr, and wanted variables / arrays are meant for, as they aren't used anywhere.
You want a "word in column header that fully matches the word not partially", so why use the index function in lieu of an equals operator?

How far wqould this get you:

Code:

for ii in ${hdr[@]}
  do    awk -vcol="$ii" ' 
        NR == 1 {for (s=1; s<=NF; s++)  if ($s == col) print s
                }
        ' file
  done
2
4

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LEARN ABOUT CENTOS

igawk

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)