Colin Watson <cjwat...@debian.org> writes: > Ah, I see. I think it would have been clearer what you meant with a bit > more context, so here it is for others:
> If one can be sure that a particular program is a Perl script > expecting filenames in @ARGV, the clever programmer can write > something like this: > % program f1 "cmd1|" - f2 "cmd2|" f3 < tmpfile > and no matter which sort of shell it's called from, the Perl > program will read from the file f1, the process cmd1, standard > input (tmpfile in this case), the f2 file, the cmd2 command, > and finally the f3 file. Pretty nifty, eh? Note also that you can modify @ARGV in the program and then use <>, and I know of Perl programs (I have even written Perl programs, back in the day) that do this to introduce pipes and other constructs and then use <> to loop through the results. -- Russ Allbery (r...@debian.org) <http://www.eyrie.org/~eagle/>
