let TotalBytes=0
for Bytes in $(ls -l | grep "^-" | awk '{ print $5 }')
do
let TotalBytes=$TotalBytes+$Bytes
done
# The if...fi's give a more specific output in byte, kilobyte, megabyte,
# and gigabyte
if [ $TotalBytes -lt 1024 ]; then
TotalSize=$(echo -e "scale=3 \n$TotalBytes \nquit" | bc)
suffix="b"
elif [ $TotalBytes -lt 1048576 ]; then
TotalSize=$(echo -e "scale=3 \n$TotalBytes/1024 \nquit" | bc)
suffix="kb"
elif [ $TotalBytes -lt 1073741824 ]; then
TotalSize=$(echo -e "scale=3 \n$TotalBytes/1048576 \nquit" | bc)
suffix="Mb"
else
TotalSize=$(echo -e "scale=3 \n$TotalBytes/1073741824 \nquit" | bc)
suffix="Gb"
fi
echo -n "${TotalSize}${suffix}"
|
참조 : Total Bytes in the Current Directory