Easiest way to strip newline character from input string in pasteboard

Question

Hopefully fairly straightforward, to explain the use case when I run the following command (OS X 10.6):

pwd | pbcopy

the pasteboard contains a newline character at the end. I'd like to get rid of it.

Answer 1

pwd | tr -d '\n' | pbcopy

Answer 2

printf $(pwd) | pbcopy

or

echo -n $(pwd) | pbcopy