10-04-2010
My problem is solved in more ways than one. Thanks to all who viewed the thread and especially those who posted their useful solutions. I learned a bit in the process and have improved my turn-around on the processing of these files considerably.
As Methyl and Franklin52 both pointed out and as I suspected, I was not escaping the % correctly in the batch flow. I also probably contributed to confusion by using the term "backslashing" in place of "escaping" in my original post. The actual term escaped me since I have been up for 26 hours now and I am trying to get back in tune with programming after a long dry spell.
As I noted in the first post the script Would run from the command line in Windows (XP).
I can also run the same script with no problems in cygwin, as tyler_durden pointed out.
It was only when I tried to use it in a batch file to process multiple files that I had a problem. I could not remember how to escape the % character in a batch file. The gawk solution put forth by Methyl worked perfectly in my batch file. I appreciate that immensely. My batch file has been modified as in the example posted by Methyl with the %% in front of the decimation interval.
I appreciate too the code example (perl) posted by tyler_durden above. Using that example, I was able to modify a short perl program that I put together a few weeks ago (with assistance from some of the same people on this site) so that I can perform this file reformat and decimation in one step instead of two.
I'm almost ready to stop and smell the roses.
Thanks for everything. 10000Springs (BC)
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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)