awk script file command line options


 
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Old 06-29-2011
awk script file command line options

Being new to awk I have a really basic question. It just has to be in the archives but it didn't bite me when I went looking for it.

I've written an awk script, placed it in a file, added the "#!/usr/bin/awk -f" at the top of the script and away I go. "% myAwk <inputfile>" gives me exactly what I expect. Now I want to add a command line option to my script to alter its behavior. Something like "% myAwk -opt1 <inputfile>" but awk is interpreting my option as just another input file rather than some internal variable (like: argv[1] ...)

Is what I'm trying to do even possible? If so, what would the awk script look like internally?
- Tom
 
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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)