Everyday AFS Commands

How do I see if I have AFS tokens?

How do I see if I have Kerberos tickets?

How do I get a new Kerberos ticket if my old ticket has expired?

How do I get a new AFS token if my old token has expired?

How do I become another user in Kerberos and AFS?

find command doesn't work! What am I doing wrong?

How do I recursively set the access control lists (ACLs) of a group of directories?

How do I see how much disk space, etc. a volume is using?