jasom/hello.lisp

Last active December 29, 2015 17:47

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Alternative way of launching lisp scripts on *nix

Raw

	'eval' #\|
	exec sbcl --script "$0" "$@"
	# \|#
	nil ;; this completes the quote from before the comment
	(format t "Hello, ~A!~%" (or (second sb-ext:posix-argv) "world"))

Author

jasom commented Dec 29, 2015

This is completely portable so long as it contains only characters from the "C" locale, as posix mandates loading an executable file as a shell script if ENOEXEC is returned.

Advantages over shebang include:

Can customize arguments to sbcl (shebang only allows exactly 1 argument portably)
Is a valid lisp-file

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