Bash utility shorthand to validate md5 checksums on files

md5c.sh

#!/usr/bin/env bash

# md5c
# 
# Perform md5 checksum validation of a file against
# a specified md5 hash.
#
# usage: md5c filename hash
function md5c {
  filename="$1"
  md5_hash="$2"
  md5_output="$(md5 $1)"
  diff="${md5_output%"$md5_hash"}"
  expected="MD5 ($1) = "

  if [ "$diff" = "$expected" ]; then
    echo "Checksum verified."
  else
    echo "Checksum failed."
  fi
}