02-02-2012
That's a particularly awful way to do it since it will fail instantly, trying to open the file '10'. You'll have to cram everything into awk's BEGIN section, and exit at the end of it, so it doesn't try to open a file named 10. You'd do a while(getline<"/dev/stdin") loop. ARGV[3] would be the number of lines if your particular version of awk even has ARGV.
tail is not a "bash command", either. bash has some builtins and tail is
not one of them. tail is an external utility that can be used with any shell or with no shell at all. It has nothing to do with bash whatsoever. This is an increasingly common and most vexing misconception because people keep trying to fix bash when the problem is not having installed the thing they're looking for in the first place
And of course that remains a
useless use of cat. I've been wondering who keeps teaching this to people.
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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)