at: at (delayed command execution) at: at: at and batch read shell commands from standard input (or a specified at: file) storing them as a job to be scheduled for execution at a later at: time. at: at: The 'at' command was written by David Parsons and Thomas Koenig. at: at: Homepage: http://anonscm.debian.org/cgit/collab-maint/at.git/ at: at: