C5_10

#!/bin/bash
echo "nhap thu muc: "
read dir
if test -d $dir
count=0
then
    for line in $(ls -l $dir | grep -v 'd' | awk '$1 != "total" {print $1}')
    do
        count=$(( $count + 1 ))
    done
    echo "Trong "$dir" co: "$count" thu muc con"
else
    echo "thu muc khong ton tai"
fi