If you pass an unrecognised option, App::Cmd doesn't complain, but it also doesn't ignore it! It adds it to the $args array.

If you don't like this, the easiest thing is to create a subclass of App::Cmd::Command, and override validate_args to check for arguments that look like they were intended to be options. Then use your subclass instead of using App::Cmd::Command directly.

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: How can I configure the perl App::Cmd module to complain about incorrect options by tobyink
in thread How can I configure the perl App::Cmd module to complain about incorrect options by ascobie

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