sleepuntil is a mix of sleep(1) and at(1). It takes the same format of time as at(1), including "noon" or "teatime".
Countdown is a command-line program that is similar to the UNIX sleep command, but displays the amount of time remaining before the timeout.
A daemon which implements the PPP protocol for internetworking over dialup lines
A flexible and manageable operating system for PCs, notebooks, and thin clients.