I'm using OS X Yosemite, just updated to 10.10.3 and the at command and related (atq, atrm etc) have stopped working. Has atd been disabled in the latest 10.10.3? If so how do I investigate and reenable the required permissions?
~$ atq atq: cannot regain privs: Operation not permitted
As background, I have a job that runs daily (using launchd) and submits a list of jobs to atd. The list of jobs are related to events occurring that day so they change times daily. So I use atd to run these jobs based on the daily event times.
It has been working fine up until the recent upgrade to 10.10.3.
/usr/libexec/atrun is enabled and running fine, according to launchd.