Total size of files under folder in command line?

[kasparov]

Hello - If I right click on a folder in Windows Explorer & select Properties it shows me Size & Size on Disk - not sure of the difference but either are good enough as an estimate of the amount of space used by files under my chosen folder.

How can I report this figure at the command prompt? I want to write a batch file which will report this figure.

I had assumed that there would be a switch to the dir command but there isn't.

Thanks in advance - Chris

 

[kasparov]

It's OK - ignore me! The Total files listed result from dir /s is close enough (but doesn't give exactly the same figures - anyone know why?)

Chris

 

[Diancecht]

The difference between size and size of disks is because data is stored into data cubes of some amount called whatever, I can't remember the name right now (clusters?). Last time I looked at it that size was 512kb.

So, a file of 513kb would need two of that cubes, and the acutal disk size occupied would be 1024kb. This is the worst case.

About the difference with MSDOS, could have to do with hidden files. Try dir /s /a

Cheers,
Dian