05-31-2014
Hi/
Quote:
Originally Posted by
rrdein
Just curious, I have the book, "Effective Awk Programming". Suffice it to say that is does not to a very effective job at actually teaching Awk. This is all it really has to say about OFS:
"It is output between the fields output by a print statement. Its default value is " ", a string consisting of a single space. ...
My copy says:
Quote:
When you change the value of a field (as perceived by awk), the text of the input record is recalculated to contain the new field where the old one was.
...
The recomputation affects and is affected by by NF ... and by a feature that has not been discussed yet, the output field separator, OFS ...
EAP 2nd Edition, page 42, A Robbins, SSC.
I think the real issue is changing the field, although I can see your point perhaps desiring that references to OFS would be more completely covered in the index.
Best wishes ... cheers, drl
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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)