Mine

#!/bin/bash
# File copy with progress indicators
# Example: ./test original_file destination_file

usage()
{
   echo "Usage: $0 original_file destination_file"
   exit 1;
}

test $# == 2 || usage

echo Preparing to copy
orig_size=$(stat -c %s $1)

>$2
dest_size=0
cp -f $1 $2 &

while [ $orig_size -gt $dest_size ] ; do
   dest_size=$(stat -c %s $2)
   pct=$((( 100 * $dest_size ) / $orig_size ))

if [ $pct -lt 10 ] ; then
   echo -en "#  $pct%\b\b\b\b"
else
   echo -en "#  $pct%\b\b\b\b\b"
fi
sleep 1
done
echo