From LedHed's Wiki
Disable WordWrap
joe --wordwrap filename.txt
or you can create a .joerc file in your home directory, but in my experience --wordwrap doesn't work in the .joerc so I add it as an alias to my .bashrc or .cshrc
.cshrc
alias joe joe --wordwrap alias jeo joe --wordwrap # because I'm a lazy typer ;)
.bashrc
alias joe='joe --wordwrap' alias jeo='joe --wordwrap' # because I'm a lazy typer ;)
Reference
http://forums.justlinux.com/showthread.php?153366-Joe-Editor-Questions
http://sourceforge.net/p/joe-editor/mercurial/ci/default/tree/docs/man.md#the-joerc-file