The at now command does not work.
echo "date" | at now
will never schedule execution. It seems that the job is
scheduled a few seconds *before* the current time.
As a consequence the 'batch' command does not work as it is
a script that executes at now.
Interestingly I have seen this same bug in IRIX,CLIX,AIX,
etc. The solution is to add 1 or 2 minutes depending on
the version of UNIX. This is because some at commands only
schedule to the nearest minute boundary viz
echo "date" | at now + 2 minutes
Still happens in 6.2b3 - "now" apparently maps to `date +%H:%M`, so seconds are
lost -> scheduled before current time.
Hmm.. it works OK for me here; at now casues
things to be run immediately.