Execute all in one clj script

cljscript

deps=`awk '/^;; deps.edn$/{flag=1;next}/^;; end deps.edn$/{flag=0}flag' $1`
script=`awk '/^;; script$/{flag=1;next}/^;; end script$/{flag=0}flag' $1`

clj -Sdeps "$deps" -e "$script"

output

# initial usage
$ time ./script.clj
2018-03-03T21:16:06.869Z
./script.clj  10.43s user 0.55s system 280% cpu 3.911 total

# notice the speedup due to classpath caching in clj 1.9.0.358
$ time ./script.clj
2018-03-03T21:16:25.889Z
./script.clj  3.77s user 0.22s system 259% cpu 1.536 total

script.clj

#!/usr/bin/env cljscript

;; deps.edn
{:deps {clj-time {:mvn/version "0.14.2"}}}
;; end deps.edn

;; script
(require '[clj-time.core :as t])
(println (str (t/now)))
;; end script