/usr/bin/at only granular to 1m... wtf?

whenits [-d] {time} {/path/to/command {arg1 arg2 arg3 ...} }

-d ... optional: daemonize (fork and run in

background). You'll need this if you're

scheduling commands that need to run after

the current shell closes.

time ... Required. Execution time may be specified

in absolute epoch seconds, or relative to

current time - eg now+5s, now+10m, now+2h.

command ... the command to be scheduled at {time},

along with any arguments to be passed to it.