Command-line arguments: Difference between revisions
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Perl 5's <code>@ARGV</code> is available as <code>@*ARGS</code>. Alternatively, if you define a subroutine named <code>MAIN</code>, Perl will automatically process <code>@*ARGS</code> according to Unix conventions and <code>MAIN</code>'s signature (or signatures, if your <code>MAIN</code> is a multi sub) and then call <code>MAIN</code> with appropriate arguments; see [http://perlcabal.org/syn/S06.html#Declaring_a_MAIN_subroutine Synopsis 6] or [http://perlgeek.de/en/article/5-to-6#post_14|5-to-6]. |
Perl 5's <code>@ARGV</code> is available as <code>@*ARGS</code>. Alternatively, if you define a subroutine named <code>MAIN</code>, Perl will automatically process <code>@*ARGS</code> according to Unix conventions and <code>MAIN</code>'s signature (or signatures, if your <code>MAIN</code> is a multi sub) and then call <code>MAIN</code> with appropriate arguments; see [http://perlcabal.org/syn/S06.html#Declaring_a_MAIN_subroutine Synopsis 6] or [http://perlgeek.de/en/article/5-to-6#post_14|5-to-6]. |
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<lang> |
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$ perl6 -e 'sub MAIN($x, $y) { say $x + $y }' 3 5 |
$ perl6 -e 'sub MAIN($x, $y) { say $x + $y }' 3 5 |
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8 |
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$ perl6 -e 'sub MAIN($x, $y) { say $x + $y }' 3 |
$ perl6 -e 'sub MAIN($x, $y) { say $x + $y }' 3 |
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Usage: |
Usage: |
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-e '...' x y |
-e '...' x y</lang> |
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</lang> |
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If the program is stored in a file, the file name is printed instead of <code>-e '...'</code>. |
If the program is stored in a file, the file name is printed instead of <code>-e '...'</code>. |
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