Copy Progress Bar Shell Script V2

This is the upgrade version of the ddcopy_progress.sh script posted on 2nd November.

#!/bin/bash
#
# SCRIPT:  ddcopy.sh
# PURPOSE: Copies files and shows the progress of copying.
#
#............................USAGE...........................
# This script copies only files not directories
# ddcopy <Source filename or Path>  <Destination filename or Path>
# ddcopy <Source filename or Path>  <Destination Directory or Path>


##################################################################
#                  Arguments Checking                            #
##################################################################

if [ $# -eq 0 ]           # Look for parameters supplied or not
then
    echo "$0: missing file operand"
    exit 1
fi

if [ $# -eq 1 ]           # Look for exactly one parameter
then
    echo  "$0 : missing destination file operand after '$1'"
    exit 1
fi

if [ $# -eq 2 ]
then
  Source="$1"
  Dest="$2"
  if [ ! -e "$1" ]           # Check source file exist or not
  then
      echo "$0: cannot stat '$1': No such file or directory"
      exit 1
  elif [ -d "$1" ]
  then
      echo "$0: Source file '$1' is a directory"
      exit 1
  fi

   egrep -q "^\/|\/$" <<<$2

   if [ $? -eq 0 -a ! -d $2 ]
   then
       echo "$0: cannot create regular file '$2' : Is a directory"
       exit 1
   fi

   if [ -d "$2" ]
   then
  filename=`basename "$1"`
  $(egrep -q "\/$" <<<$2) && Dest="$2$filename" || Dest="$2/$filename"
   fi

   if [ -e "$Dest" -a -f "$Dest" ]
   then
      echo -n "$0: $Dest already exist : overwrite '$Dest' (y/n)?  "
      read answer
      if [ "$answer" = "n" -o "$answer" = "N" ]
      then
          exit 1
      fi
   fi
fi

###################################################################
#               DEFINE VARIABLES HERE                             #
###################################################################

Seek=0               # skip BLOCKS bs-sized blocks at start of output
Skip=0               # skip BLOCKS bs-sized blocks at start of input
Bsize=128000         # block size
size=`stat -c %s "$Source"`

# Bellow 25MB files copied directly with copy command
# If you want progress bar for < 25MB files also, remove bellow
# if block

if [ $size -lt 25000000 ]
then
    cp "$Source" "$Dest"
    exit 0
fi

blocks=$((size/Bsize))      # total blocks of input file

lastblock=$((size%Bsize))   # last block,  which size  < $Bsize

# If last block size is > 0 then add 1 block to existing blocks.

if [ $lastblock -gt 0 ]
then
    let blocks++
fi

# I am dividing screen width 60 as 20 parts.Each part is filled
# with a colour after each iteration.

# Make blocks count dividable by 20.

addblocks=$((blocks%20))
if [ $addblocks -gt 0 ]
then
   adjustblocks=$((20-addblocks))
   blocks=$((blocks+adjustblocks))
fi

Count=$((blocks/20))

# Count variable contain number of blocks to be copied for
# each iteration

###################################################################
#            MAIN PROGRAM STARTS HERE                             #
###################################################################

printf "\e[40m\e[43m%60s\n\e[A" " "

for ((i=1;i<=20;i++))
do

  dd if="$Source" of="$Dest" bs=128kB seek=$Seek skip=$Skip \
  count=$Count 2>/dev/null

   Skip=$((Skip+$Count))
   Seek=$((Seek+$Count))
   j=$((j+3))                     # 60/20 each part is 3 chars length

   printf "\e[40m\e[7m%${j}s\n\e[A" " "
#  echo -e "\033[7m   \c"

done
printf "\e[0m\n"
#echo -e "\033[0m"

OUTPUT:
Screen Shot1:

Screen Shot2:

Screen Shot3: