Hi All,
I wrote myself a little demonstration program on
reading elements from the command line. I thought
it might be useful to others (DuckDuckGo is a bust
on Perl 6 and the command line):
-T
Perl 6: command line parameters:
<code>
#!/usr/bin/perl6
if not @*ARGS.elems > 0 { say "command line is empty"; exit 0; }
say "\@\*ARGS has " ~ @*ARGS.elems ~ " elements";
say " \@\*ARGS = <" ~ @*ARGS ~ ">";
say " \@\*ARGS.perl = <" ~ @*ARGS.perl ~ ">\n";
say "say in a loop:";
for @*ARGS.kv -> $indx, $Arg { say " \@\*ARGS[$indx] = <$Arg>"; }
</code>
$ ./CommandLineTest.pl6
command line is empty
$ ./CommandLineTest.pl6 a b c
@*ARGS has 3 elements
@*ARGS = <a b c>
@*ARGS.perl = <["a", "b", "c"]>
say in a loop:
@*ARGS[0] = <a>
@*ARGS[1] = <b>
@*ARGS[2] = <c>
--
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Computers are like air conditioners.
They malfunction when you open windows
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