Shift just gets you the first element of the array and removes it from the array so a subsequent shift will get the next element and so on. With no array specified it uses @ARGV (or @_ in a subroutine), so the versions you give are equivalent in this case, each checking just one argument.

Similar but NOT equivalent would be: 

my $StartDir = $ARGV[0] || die "Usage: $0 <startdir>\n";

[download]
That checks the first command line argument but does not remove it from the argument list.

--
I'd like to be able to assign to an luser

In reply to Re: Re: Re: Checking for data entry by Albannach
in thread Checking for data entry by Anonymous Monk

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