Printing $values using awk Post: 302960398

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Top Forums Shell Programming and Scripting Printing $values using awk Post 302960398 by Don Cragun on Sunday 15th of November 2015 03:15:15 AM

11-15-2015

Registered User

Hi gvkumar25,
Let us be very clear. In post #1 you showed us code that looked for the string c1 and the string c2 in a file with | as a field separator and the following data:

Code:

c3 | c1 | c2

so NO matches should be found because there are extra spaces in your sample data file. And, you said the requirement was to: "I had requirement where I need to re-order columns in a file by using a control file." (Note "re-order columns"; not re-order some columns and discard other columns.) Therefore, RudiC suggested code that searched for a partial match for the strings provided instead of looking for exactly equal strings. That was the only way to get the output you said you wanted from the sample inputs provided.

Now you show us sample input files with no spaces and with data where just looking for headings that contain the strings shown in your control file select several fields.

If you're going to change the sample data and provide a new set of requirements, don't complain if the code provided to meet your original requirements and original data doesn't work with new requirements and different data.

Don Cragun

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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)