[kwlug disc.] bash script basics

[Richard Weait]

I'm looking for a bash script solution for what must be a common
situation.  But I don't have the script-fu to solve this.  And my
google-fu has failed me, too.

A CLI tool accepts three arguments.  I'd like to feed the CLI tool
with a series of these coordinates.  And I'd like to have comments in
the file that are ignored rather than sent to the CLI.  Surely this is
a 5 or 6 line script. No?

How do I feed the lines of arguments to my command?

I suppose perl could do this in four punctuation symbols.

The data file might look like this.

#
# this is a fake data file
#

1 2 3 # three whitespace separated numbers
4 5 6
7 8 9
10 11 12  # each number up to 5 or 6 digits
# comments
13 14 15 # real data is arbitrary, not sequential
16 17 18

Help?