UNIX Commands
Quota

Displays how much space you have used and how much space you are entitled to.

example:

[joe@server htdocs]$ quota

results:

File system blocks quota limit .........
.......... 56 70 70 .........


All the numbers are in units of kilobytes.
"block" is the amount of space already used up. (In this case, it is 56kb.)
"quota" and "limit" both mean the same thing, that is, the amount of space entilted. (In this case, it is 70kb, which means that 14kb of server space is left.)