demo

#!/bin/sh
# REPLbot demo script to show how to build a simple custom REPL.
#
# Scripts are executed as "./script run <id>" to start the REPL,
# and as "./script kill <id>" to stop it.
#
# This script does not need an explicit "kill" behavior, since it's
# a simple bash script. If you spawn other processes you may want to
# clean up after yourself though, particularly for Docker containers.

case "$1" in
  run)
    echo "Welcome to the demo REPL!"
    while true; do
      echo "Available commands:"
      echo "[t] Print date & time"
      echo "[q] Quit"
      read command
      if [ "$command" = "t" ]; then
        echo "The current time is: $(date)"
      elif [ "$command" = "q" ]; then
        echo "Bye!"
        exit
      else
        echo "Unknown command"
      fi
    done
    ;;
  kill)
    ;;
  *) echo "Syntax: $0 (run|kill) ID"; exit 1 ;;
esac