#
# input: a number of bytes
# output: the same number in human-readable format
#

bytes_to_readable ()
{
        local -i bytes=${1:-0}

        local -i shiftby \
                 divisor

        # accomodate decimal
        local +i result

        local -a shifts=(       10 20 30 40 50  )
        local -a suffixes=(     ''  K  M  G  T  )

        for ((i = 0; i < ${#shifts[@]}; i++)) {
                shiftby=${shifts[i]}
                ((bytes >> shiftby)) || break
        }
        let shiftby-=10
        suffix=${suffixes[i]}

        divisor=$((1 << shiftby))
        result=$(bc <<< "$bytes / $divisor")

        #

        echo ${result/#./0.}${suffix}
}
# vim:syn=sh:ft=sh