keyword
boot.janet on line 3787, column 1
Dynamic bindings that will contain command line arguments at
program start.
# use (dyn :args) to get the value of dynamic binding *args*
(let [args (dyn :args)]
(if (= "-h" (get args 1))
(print "Usage: janet args.janet [-h] ARGS..")
(printf "command line arguments:\n %q" args)))