\begin{verbatim}
upsh_look_up( distro, '$HOME/pl/programs' ).
upsh_look_up( recurse, '$HOME/pl/lib/unix' ).
upsh_look_up( say, '$HOME/pl/upsh' ).
upsh_look_up( srm, '$HOME/pl/programs' ).
upsh_look_up( submit, '$HOME/pl/programs' ).
\end{verbatim}
