Cool, I needed this once too

I do that all the time. I like datomic ion's take on it too.

Sending in an edn map through an arg or stdin

ironically I quickly realized that I couldn't do that in this case, because the program also took its input from stdin

I guess in theory I could have arranged for the script to be prepended to the input and make sure the last form is one that does the work and then System/exits, but that sounds pretty hacky

@gfredericks I once asked for an option in here to provide a program with the -e option, without printing expressions.

Would that make sense in your case?

I could've but it was a ~20 line script so I felt weird putting that in an arg

put it in a variable.

clojure -e <<EOF
  (println "ta-da")
EOF

heredoc can be pretty useful

(apparently that doesn't work)

Borkdude@borkdude /tmp $ echo '(println "hello")' > hello.clj
Borkdude@borkdude /tmp $ clj -e "$(cat hello.clj)"
hello
Borkdude@borkdude /tmp $

But then again, you could just do clj hello.clj 🙂

I'm not a bash lawyer yet, but I got the distinct impression yesterday that <<EOF goes to stdin

clojure -e "$(cat << 'FOO'
  (println "ta-da")
FOO
)"

I've been learning some bash recently. Weirdest thing so far is the <> redirection operator.