Which file specifies the user accounts can NOT submit jobs via at or batch?
(Provide the full path and filename)
Answer: /etc/at.deny
Explanation/Reference:
The /etc/at.allow and /etc/at.deny files determine which user can submit commands for later execution via at(1) or batch(1). The format of the files is a list of usernames, one on each line. The superuser may always use at. If the file /etc/at.allow exists, only usernames mentioned in it are allowed to use at. If /etc/at.allow does not exist, /etc/at.deny is checked.