12-12-2009
When a poster, who is not posting homework of course, asks for a reply in sed, it is generally best not to try to twist the arm of the original poster to a solution using awk or some other tool.
The poster asked for an sed solution and has commented they are not familiar with awk. So, let them have a solution that works for them.
I tend to agree that this has turned into a hypothetical discussion and does not address the needs or requirements of the original posters question.
Unless there is some reason the original poster wants to switch to awk, let's give him a solution in sed, which is what they asked for in the first place.
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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)