Read the USER Quota in SSH

How the User Quota query from an SSH access to Linux Shell.

ssh user@host quota 

Or if querying other users quotas (assuming you have the rights)

ssh me@host quota user

Can you me explain quite so?

These two instructions do not return a answer with system();

I get the Message quota: command not found.

Can you confirm which Linux variant you are connecting to?

You may need to give the full path to the command if it is not in the $PATH of the account you are connecting to.

Robin

I use Debian.

How can I get the Full Path?