Linux: Check if the MD5 hashes are the same between two files

md5sum_diff.sh

#!/usr/bin/env bash
# Usage: ./md5sum.sh file1 file2

if [ "$#" -ne 2 ]; then
    echo -e "Too many arguments,\n\nUsage:\n$ ./check.sh file1 file2"
fi

validate_files() {

  status=0

  for file in "$@"
    do
      # Do any preliminary checks of the file here
      if [ ! -f $file ]; then
        echo -e "\033[1;31mERROR: $file does not exist!" && status=1
      fi
    done

  if [ $status == 1 ]; then exit 1; fi
}

validate_files $1 $2

get_md5_hash() {
  echo $(md5sum $1 | awk '{print $1}')
}

compare_md5 () {
  file1_hash=$(get_md5_hash $1)
  file2_hash=$(get_md5_hash $2)

  if [[ $file1_hash == $file2_hash ]]
  then
    echo -e "\033[1;32mINFO: md5 hash MATCH between $1 and $2"
  else
    echo -e "\033[1;31mERROR: md5 hash MISMATCH between $1 and $2"
  fi
}


compare_md5 $1 $2