md5_compare.sh

md5_compare.sh

#!/bin/bash

error() {
  echo "$*"
  exit 1
}

usage() {
  echo "Usage: bash md5_compare.sh [A] [B]"
  echo "  Checks that all hashes in B are in A"
  exit
}

main() {
  [[ $# == 2 ]] || usage
  local a="$1"
  local b="$2"
  local hashes=($(awk '{print $1}' "$b"))
  for h in "${hashes[@]}"; do
    grep "$h" "$a" &> /dev/null || error "Couldn't find hash=$h"
  done
  echo "All hashes found"
}

main $*