#!/bin/bash

# set charset to avoid problems
export LANG=en_US.UTF-8
export LANGUAGE=en_US:en
export LC_CTYPE=en_US.UTF-8

# config
base_india_dir=/home/dp/all_india
base_dir=/home/dp
#sum_dir=$base_dir/_md5_check/sums
#log_dir=$base_dir/_md5_check/$(date +%Y%m%d)
sum_dir=$base_india_dir/_md5_check/sums
log_dir=$base_india_dir/_md5_check/$(date +%Y%m%d)

# functions
function check_md5 {
  # set charset to avoid problems
  export LANG=en_US.UTF-8
  export LANGUAGE=en_US:en
  export LC_CTYPE=en_US.UTF-8

  my_stdout=$log_dir/${1:0: -4}_stdout.txt
  my_stderr=$log_dir/${1:0: -4}_stderr.txt
  my_time=$log_dir/${1:0: -4}_time.txt
  my_analyse=$log_dir/${1:0: -4}_analysis.txt

  cd $base_dir

  (time md5sum -c $sum_dir/${1} > $my_stdout 2> $my_stderr) 2> $my_time
  grep -v OK $my_stdout > $my_analyse
}

function create_md5 {
  my_stdout=$sum_dir/${1}.md5
  my_stderr=$log_dir/${1}_stderr.txt
  my_time=$log_dir/${1}_time.txt
 
  touch $my_stdout
  (time find ${1} -type f -exec md5sum -b {} \; > $my_stdout 2> $my_stderr) 2> $my_time
}

# main program
mkdir -p $log_dir
#cd $sum_dir
cd $base_dir

#for i in hdd2[1-6]; do
#  create_md5 $i &
#done
#
#wait 

#for i in hdd2[7-9] hdd3[0-2]; do
for i in hdd29 hdd3[0-2]; do
  create_md5 $i &
done