At 9:10 PM -0700 10/6/09, Slick wrote:
Thanks David.
Got another question that I have been trying to wrap my mind around.
About @argv. Now it says from I understand and read it access
information from the command prompt. How exactly does it work? Is
it it's own database? Or am I mistake, I know this may be a crazy
question to ask.
The @ARGV array (case matters) contains the command-line arguments
with which the program was called. For example, if you have a Perl
program myprog.pl and execute it this way from a command prompt:
perl myprog.pl command line arguments
then the @ARGV array contains three elements, just as if you had the line
@ARGV = ( 'command', 'line', 'arguments' );
at the beginning of your program. There is no "database" involved.
The @ARGV array is a normal, global array in the main package and can
be accessed in your program like any other array.
You can read about @ARGV and many other special Perl variables in the
'perlvar' section of the built-in Perl documentation, available from
a shell with
perldoc perlvar
--
Jim Gibson
j...@gibson.org
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