39.2.5. Controlling Access to At and Batch
/etc/at.denyfiles can be used to restrict access to the
batchcommands. The format of both access control files is one username on each line. Whitespace is not permitted in either file. The
atd) does not have to be restarted if the access control files are modified. The access control files are read each time a user tries to execute the
The root user can always execute
batchcommands, regardless of the access control files.
If the file
at.allowexists, only users listed in it are allowed to use
batch, and the
at.denyfile is ignored.
at.allowdoes not exist, users listed in
at.denyare not allowed to use