It is possible to use Planck directly on the command line, evaluating forms directly without entering a interactive REPL. To do this, pass
For example, here is a way to calculate π, based on a popular technique used in the early days with BASIC:
$ planck -e'(* 4 (Math/atan 1))' 3.141592653589793
It is also possible to use multiple evals. This prints a directory listing:
planck -e"(require 'planck.core)" -e'(run! (comp println :path) (planck.core/file-seq "/tmp"))'
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