Delete character using rule "s"

[whyyfmwr]

Hello,
I have a question about rule-based attack. I know I can change all "," characters to "-" by this rule:

Code:

s,-

Code:

paper,paper -> paper-paper

Is is possible to use this rule to delete all "," characters?

Code:

paper,paper -> paperpaper

I tried to use a rule

Code:

s,

but this is probably not a valid rule.

[philsmd]

Code:

@,

https://hashcat.net/wiki/doku.php?id=rule_based_attack (purge)

[whyyfmwr]

Nice, thanks. I see it was a stupid question from me, but I didn't understand the english word "purge" at first sight.