Passing data arguments via command line
Sorry, let's try that again with a sensible subject line -- Mo ======== Hi all, This is a very dim question, but hey, this is a beginners' list so I hope you'll forgive me. I want to be able to pass variable data arguments to my perl script from an outside application by calling a command line that's something along the lines of: perl myscript.pl "data1" "data2 "data3" (a) is it possible to pass data arguments via the command line in this way? (b) inside the script I want to assign them to variables -- but how do I reference them? Do they count as being on STDIN or something? Thanks for your help, best, Mo Mo Holkar Undying King Games mo@ukg.co.uk http://www.ukg.co.uk
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mo
4/24/2001 11:09:28 AM
perl.beginners
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> perl myscript.pl "data1" "data2 "data3"
>
> (a) is it possible to pass data arguments via the command line in this
way?
Yes, indeed. Anything that is passed to your program in this way will be
stored in the array, @ARGV. You can access the first argument with
$ARGV[0], the second with $ARGV[1], and so on.
> (b) inside the script I want to assign them to variables -- but how do I
> reference them? Do they count as being on STDIN or something?
You can assign them at the beginning of your script usign the following:
my @theArguments = @ARGV #all of them in an array
-or-
my ($username, $password, $logfile, $filename) = @ARGV
# Expect 4 arguments
# Ignore the rest for now
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steve
4/24/2001 11:52:02 AM
On Tue, Apr 24, 2001 at 12:09:28PM +0100, Mo Holkar / UKG wrote: > perl myscript.pl "data1" "data2 "data3" > > (a) is it possible to pass data arguments via the command line in this way? Yes. > (b) inside the script I want to assign them to variables -- but how do I > reference them? Do they count as being on STDIN or something? You will find them in the @ARGV array in the same order they were passed in. You may access this as any other array. perldoc perlvar perldoc perldata -- Paul Johnson - paul@pjcj.net http://www.pjcj.net
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paul
4/24/2001 12:00:13 PM
On Tue, Apr 24, 2001 at 06:52:02AM -0500, Steve Neu wrote: > > perl myscript.pl "data1" "data2 "data3" > > > > (a) is it possible to pass data arguments via the command line in this > way? > [snip options] > -or- > > my ($username, $password, $logfile, $filename) = @ARGV > # Expect 4 arguments > # Ignore the rest for now Note, of course, that this does not actually *remove* the first four arguments from @ARGV. dha -- David H. Adler - <dha@panix.com> - http://www.panix.com/~dha/ "I go where I will and I do what I can" - Henry Fool
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dha
4/24/2001 9:16:00 PM
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