Contents

#!/usr/bin/env bash

is_armstrong() {
  sum=0
  number=$1
  power=${#number}

  index=1
  while [ $index -le ${#number} ]; do
      digit=$(echo ${number} | cut -c${index}-${index})
      sum=$(expr $sum + $(($digit**$power)))

      index=$(expr $index + 1)
  done

  if [ $sum -eq $number ]; then
    echo "true"
    exit 0
  else
    echo "false"
    exit 1
  fi
}

"$@"

Version data entries

93 entries across 93 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.179	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.178	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.177	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.176	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.175	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.174	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.173	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.172	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.171	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.170	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.169	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.167	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.166	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.165	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.164	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.163	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.162	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.161	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.160	tracks/bash/exercises/armstrong-numbers/example.sh