Contents

(format t "Hello world!~%")

Or

(print "Hello world!")

===Alternate solution===
I use [https://franz.com/downloads/clp/survey Allegro CL 10.1]


;; Project : Hello world/Text

(format t "~a" "Hello world!")

Output:

Hello world!

Version data entries

10 entries across 7 versions & 1 rubygems

Version	Path
zettacode-0.1.7	files.zettacode/hello_world.text/common_lisp.txt
zettacode-0.1.6	files.zettacode/hello_world.text/common_lisp.txt
zettacode-0.1.6	files.zettacode2/hello_world.text/common_lisp.txt
zettacode-0.1.5	files.zettacode/hello_world.text/common_lisp.txt
zettacode-0.1.5	files.zettacode2/hello_world.text/common_lisp.txt
zettacode-0.1.4	files.zettacode/hello_world.text/common_lisp.txt
zettacode-0.1.4	files.zettacode2/hello_world.text/common_lisp.txt
zettacode-0.1.3	files.zettacode/hello_world.text/common_lisp.txt
zettacode-0.1.2	files.zettacode/hello_world.text/common_lisp.txt
zettacode-0.1.1	zettacode.files/hello_world.text/common_lisp.txt