s/[^a-zA-Z0-9 _-]//g

You can also use tr for such removals, should be faster.

See also: perlretut

Perl 6 - second systems done right

In reply to Re: Remove all non alphanumeric characters excluding space, underscore and minus sign by moritz
in thread Remove all non alphanumeric characters excluding space, underscore and minus sign by ikkeniet

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