Hi!
In a book called "Open Source Linux Web Porgramming" by Jones and Batchelor,
it says (on Page 61):
"When you launch a script from the command line, for example, @_ populates
with all of the parameters passed in through the command line. The shift
function, among others, will use @_ by default if no other array is provided.
#!/usr/bin/perl
@firstCommandLineArg=shift;
@secondCommandLineArg=shift;"
The provided code snipplet works but if I use "shift @_" (since @_ is
supposedly used by default anyway), I do not get the command line
arguments.
However, if I use "shift @ARGV", I DO get the command line arguments. If the
shift function really does use @_ as its default argument, then why did shift
in the example code, use @ARGV as default? Does @_ really get populated
"with all of the parameters passed in through the command line"?
Thanks,
George Petri
