Sorry I forgot to mention that this should have been posted in the Newbie section from the beginning (thanks to Krisse).

I've been trying to figure out how to use xterm since some of the advice I've been getting mentions procedures using it. I have no idea how begin using it.

So far I've typed:

'claws-mail --debug'
claws-mail --debug'
claws-mail
--debug

and all got the response of "not found"

I've if there was a tutorial on how to use xterm but haven't found any instructions.