> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/perl6-rosettacode/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/perl6-rosettacode/programming_tasks/c/command-line_arguments.md).

# Command-line arguments

Perl 5's `@ARGV` is available as `@*ARGS`. Alternatively, if you define a subroutine named `MAIN`, Perl will automatically process `@*ARGS` according to Unix conventions and `MAIN`'s signature (or signatures, if your `MAIN` is a multi sub) and then call `MAIN` with appropriate arguments; for more detailed information see: <https://docs.raku.org/language/create-cli>

```perl
# with arguments supplied
$ raku -e 'sub MAIN($x, $y) { say $x + $y }' 3 5
8

# missing argument:
$ raku -e 'sub MAIN($x, $y) { say $x + $y }' 3 
Usage:
-e '...' x y
```

If the program is stored in a file, the file name is printed instead of `-e '...'`.