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package bar.foo.lenses;

import java.util.function.BiFunction;
import java.util.function.Function;

public class Lens<A, B> {

    private final Function<A, B> getter;
    private final BiFunction<A, B, A> setter;

zygm0nt

This is a big list of alternative shells! (As opposed to the common POSIX-ish shells like bash and zsh)

Some of them are more like languages, and some are more interactive. Some are active and some are dormant. They are written in many different languages.

This wiki page is EDITABLE. If you know of another significant or interesting shell, please add a link. If it's a DSL embedded in another language (like Python), add it to [[Internal DSLs for Shell]].

Related: [[ExternalResources]]

Active Alternative Shell Languages

zygm0nt

Run with BBC Basic. Eg. with brandy emulator.

brandy -lo schotter

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[JavaScript Error: "Error: Only 0 translators present in cache. Resetting
    at Object.init (chrome-extension://ekhagklcjbdpajgpjgmbionohlpdbjgc/translators.js:87:20)
    at Object.update (chrome-extension://ekhagklcjbdpajgpjgmbionohlpdbjgc/translators.js:256:41)
    at _handleResponse (chrome-extension://ekhagklcjbdpajgpjgmbionohlpdbjgc/repo.js:178:23)
    at chrome-extension://ekhagklcjbdpajgpjgmbionohlpdbjgc/repo.js:162:4"]

[JavaScript Error: "Error: Code could not be retrieved for ecddda2e-4fc6-4aea-9f17-ef3b56d7377a
    at _haveCode (chrome-extension://ekhagklcjbdpajgpjgmbionohlpdbjgc/repo.js:101:20)
    at chrome-extension://ekhagklcjbdpajgpjgmbionohlpdbjgc/repo.js:89:6"]

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scala> case class Category(
     |                      path: String,
     |                      id: String,
     |                      name: Option[String] = None
     |                    )
defined class Category

scala> case class BaseItem(id: ItemId,
     |                     userId: Option[String],
     |                     category: Option[Category],

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class X:
  def read_all_sessions(self):
        all_sessions = []

        for file_path in tqdm(
                iterable=[os.path.join(self.input()[0].path, f_name) for f_name in
                          os.listdir(self.input()[0].path)],
                mininterval=1.0, desc='Loading sessions'):
            with gzip.open(file_path) as stream:
                for l in stream:

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import org.apache.hadoop.fs.{FileSystem, Path}
import org.apache.spark.sql.SparkSession


object App {

  def lsFiles(path: String, ss: SparkSession) = {
    FileSystem.get(ss.sparkContext.hadoopConfiguration).listStatus(new Path(path)).toSeq.map {
      _.getPath.toString
    }

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import org.scalajs.dom.html.{Div, Element}

import scala.scalajs.js
import scala.scalajs.js.annotation.JSName

package object graph {

  @js.native
  @JSName("cytoscape")
  object CytoscapeStatic extends js.Object {

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import io.circe._
import io.circe.parser._
import io.circe.syntax._

import akka.http.scaladsl.marshalling.{Marshaller, ToEntityMarshaller}
import akka.http.scaladsl.model.{ContentTypeRange, HttpEntity}
import akka.http.scaladsl.model.MediaTypes.`application/json`
import akka.http.scaladsl.unmarshalling.{FromEntityUnmarshaller, Unmarshaller}

import scala.concurrent.Future