To run guile interpreter: guile (+ 20 30) Add 20 and 30 Save a file as: later.scm ------------------------- #!/usr/local/bin/guile -s !# (display "Later World!") (newline) ------------- end-later.scm The !# is used to terminate the shebang style comment. This is the guile way of doing this. To run a file: guile later.scm To run from inside interpreter; load it: guile (load "later.scm")