Description:

k5start and krenew are modified versions of kinit which add support
for running as a daemon to maintain a ticket cache, running a command
with credentials from a keytab and maintaining a ticket cache until
that command completes, obtaining AFS tokens (via an external aklog)
after obtaining tickets, and creating an AFS PAG for a command.
They are primarily useful in conjunction with long-running jobs; for
moving ticket handling code out of servers, cron jobs, or daemons; and
to obtain tickets and AFS tokens with a single command.