#!/bin/bash
#converts kilobytes to Mega/Giga/Tera/Peta


usage()
    {
    cat << EOF
usage: $0 {number of Kilobytes}
eg

# $0 100
 cumulative 100 kB

# $0 1000
 cumulative 1000 kB

# $0 1024
 cumulative 1024 kB
1 MB

# $0 100000
 cumulative 100000 kB
97 MB

EOF
    }


if [ $# != 1 ]
then
  usage
  exit 1
fi





cumulative=$1
echo cumulative $cumulative kB
let cumulativeMB=$cumulative/1024
  if [ $cumulativeMB -ge "1" ]
   then
   echo $cumulativeMB MB
  fi
let cumulativeGB=$cumulativeMB/1024
  if [ $cumulativeGB -ge "1" ]
   then
   echo $cumulativeGB GB
let remainderGB=$cumulativeMB-1024
   echo $remainderGB MB
  fi
let cumulativeTB=$cumulativeGB/1024
  if [ $cumulativeTB -ge "1" ]
   then
   echo $cumulativeTB TB
  fi