awk to add value and text to specific lines Post: 303008280

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Top Forums Shell Programming and Scripting awk to add value and text to specific lines Post 303008280 by Don Cragun on Wednesday 29th of November 2017 04:15:04 PM

11-29-2017

Registered User

I'm very confused.

Are you just trying to print lines that need to have fields added? Or, do you want to print all lines in the file whether they change or not? Your code makes no attempt to ignore the header/comment lines at the start of your file, but you don't seem to want them to be changed even though none of them have 16 tab separated fields and you try to change every line that doesn't have a field #16.

I suggested using /[=;]/ as an ERE argument for split(); you used [=;] instead (which I would expect to give you a syntax error).

I suggested printing array[2] IF DP=value; is ALWAYS at the start of field #8. You printed array[1] and showed us an example where DP=value; is the third subfield in field #8.

I know that you like writing awk 1-liners (instead of readable code). But, until you fully understand the syntax of an if statement in akw, you would be much better off writing awk code longhand so you can actually see how the pieces are supposed to fit together. (And please show us the output you get from the code you're running including the diagnostic messages as well as the normal output.)

Those of us who are trying to help you get tired quickly when there is no clear specification of what you are trying to do and no clear specification of the format of the data you're trying to interpret and modify.

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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)