The title is "With Pen In Hand" by Bobby Goldsboro. The correct quote is

With pen in hand, you sign your name.
Today at five, I'll be on that train.

With that information, and with a search engine like Google, you can find several copies on the Internet.

[A word of advice to fellow Mudcatters: If you don't want to post lyrics for whatever reason, but you want to be helpful anyway, please at least provide MINIMAL information about the song as illustrated here, instead of just a link. Advantages: (1) It helps people learn how to find lyrics on their own; (2) The information will remain here, and remain useful, even if the link becomes broken.]