muted@lap ~ $ aptitude search ~n^at$
i at - Delayed job execution and batch processing
muted@lap ~ $ aptitude show at
Package: at
State: installed
Automatically installed: no
Version: 3.1.11-1ubuntu5
Priority: standard
Section: admin
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Uncompressed Size: 229k
Depends: libc6 (>= 2.7), libpam0g (>= 0.99.7.1), upstart-job, lsb-base (>= 3.2-14)
Suggests: default-mta | mail-transport-agent
Description: Delayed job execution and batch processing
At and batch read shell commands from standard input storing them as a job to be scheduled for execution in the future.
Use
at to run the job at a specified time
batch to run the job when system load levels permit
где вы его искали?