Shell Programming and Scripting

I am newbies and struggling with this tasks.

How to calculate only visible or hidden folders and files in a dictionary?
( i did something like this but it show both visible and hidden files at the same time: ls -l | grep ^- | wc -l )

how to use parse the output of an ls in order to find the size of each file in order to calculate the total space usage.?
( for example :

Code:

Files found: 11 (+ 15 hidden)
Folders found: 4 (+ 2 hidden)
Total files and folders: 32
Total size: 40613 bytes )

please do not use :

Code:

find
locate
du
Any recursive commands (such as ls -R)

many thanks

Is this not homework?

yes, its homework. Do u know how to solve that task?

Many thanks

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