I'm trying to pipe grep output to rm, but it outputs useless stuff. Is any switch required for rm? Or can rm can be provided a regexp directly?

$ ls | grep '^Dar' |rm   rm: missing operand Try `rm --help' for more information. 

I'm trying to pipe grep output to rm, but it outputs useless stuff. Is any switch required for rm? Or can rm can be provided a regexp directly?

ls | grep '^\[Daruchini'| rm 

rm: missing operand Try `rm --help' for more information.

i'm trying to pipe grep output to rm, but it outputs useless stuffz...any switch in rm is required ? or rm can be provided regexp directly? `$ls|grep '^Dar' |rm $try rm --help``

I'm trying to pipe grep output to rm, but it outputs useless stuff. Is any switch required for rm? Or can rm can be provided a regexp directly?

$ ls | grep '^Dar' |rm rm: missing operand Try `rm --help' for more information.