Now let's say we want to give the user jane a quota. We do this with the edquota command. Before we start editing quotas, let's see how much space we have available on /usr/users:

# df /usr/users

Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/hdc1               610048      4276    605772   1% /usr/users

This isn't a particularly large filesystem, only 600M or so. It seems prudent to give jane a quota so that she can't use more than her fair share. When you run edquota, a temporary file is created for each user or group you specify on the command line.