Standard Unix tools that are interpreters follow a common command line protocol that is necessary to work with “shebang scripts”. SBCL doesn't do this by default, but adding the following snippet to an initialization file does the trick:
;;; If the first user-processable command-line argument is a filename,
;;; disable the debugger, load the file handling shebang-line and quit.
(let ((script (and (second *posix-argv*)
(probe-file (second *posix-argv*)))))
(when script
;; Handle shebang-line
(set-dispatch-macro-character #\# #\!
(lambda (stream char arg)
(declare (ignore char arg))
(read-line stream)))
;; Disable debugger
(setf *invoke-debugger-hook*
(lambda (condition hook)
(declare (ignore hook))
;; Uncomment to get backtraces on errors
;; (sb-debug:backtrace 20)
(format *error-output* "Error: ~A~%" condition)
(quit)))
(load script)
(quit)))
Example file (hello.lisp):
#!/usr/local/bin/sbcl --noinform
(write-line "Hello, World!")
Usage examples:
$ ./hello.lisp
Hello, World!
$ sbcl hello.lisp
This is SBCL 0.8.13.70, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.
SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses. See the CREDITS and COPYING files in the
distribution for more information.
Hello, World!