Boilerplate for running Clojure as a shebang script

00_script.clj

#!/bin/sh
#_(

   #_DEPS is same format as deps.edn. Multiline is okay.
   DEPS='
   {:deps {clj-time {:mvn/version "0.14.2"}}}
   '

   #_You can put other options here
   OPTS='
   -J-Xms256m -J-Xmx256m -J-client
   '

exec clojure $OPTS -Sdeps "$DEPS" "$0" "$@"

)

(println "Hello!")

(require '[clj-time.core :as t])

(prn (str (t/now)))

(prn *command-line-args*)

(println (.. (Runtime/getRuntime)
             totalMemory))

Execution time

$ cp script.clj ~/bin/cljtest2
# ~/bin is on my $PATH
$ chmod +x ~/bin/cljtest2
$ time cljtest2 "Yo" "Hey" 1 3 4 - -ff
Hello!
"2019-03-01T17:22:43.564Z"
("Yo" "Hey" "1" "3" "4" "-" "-ff")
268435456

real	0m2.073s
user	0m6.073s
sys	0m0.297s
$ 

That is cool. Thanks for the explanations!

So you have to be a little careful about what you put between the parens on lines 2 and 16. For example I had to add quotes around the URL in this line to make the Clojure reader happy:

   #_this shebang genius is from "https://gist.github.com/ericnormand/6bb4562c4bc578ef223182e3bb1e72c5"