Hi,

In message "[ruby-talk:03366] Re: chomp!"
    on 00/06/13, Dave Thomas <Dave / thomases.com> writes:

|chomp:
|       Equivalent to $_.chomp!(aString), except nil is never
|       returned. If $_ is changed, the new version is returned,
|       otherwise a copy of the original value is returned. See
|       String#chomp! on page 1.

        Equivalent to `$_ = $_.chomp(aString)'.

							matz.