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-2.2.1.119	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.118	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.117	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.116	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.115	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.114	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.113	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.111	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.110	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.109	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.108	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.107	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.106	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.105	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.104	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.103	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.102	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.101	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.100	tracks/bash/exercises/armstrong-numbers/example.sh
trackler-2.2.1.99	tracks/bash/exercises/armstrong-numbers/example.sh