Lief, no, you're joining JupiterHost in misreading my posts (!): command
*line*, not *command*. It is a bit subtle, but its also the whole point
I'm not misunderstanding, you are :)
You want:
echo "foo" | script.pl -p 100 > foo.txt
not just:
script.pl -p 100
The point is:
How can a script (in any language) have that data if the shell does
not give it?
I recommended rethinking how to reach your goal:
To log exactly how a given piece of data was had.
So what you should do is get the info *inside* your script and log it
that way:
script.pl -p 100 -in foo -out foo.txt
now in side open foo and put it in foo.txt
Now you know that the input is from foo and it was written to foo.txt
and -p was 100, etc etc:
a) without having to somehow farm data that simply isn't available
99.9% (pronounced 100%) of the time
b) without having to get it from the PID info
c) in a form that can be logged in a format that will be more usefull
later (CSV, mySQL, etc) so that you can, say , generate reports on how
many widgets were from foo in a given date range and the files that they
were put in
HTH :)
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