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atd(8) -- Linux man page
NAME
atd - run jobs queued for later execution
SYNOPSIS
atd
[-l
load_avg]
[-b
batch_interval]
[-d]
[-s]
DESCRIPTION
atd
runs jobs queued by
at(1).
OPTIONS
- -l
-
Specifies a limiting load factor, over which batch jobs should
not be run, instead of the compile-time choice of 0.8.
For an SMP system with
n
CPUs, you will probably want to set this higher than
n-1.
- -b
-
Specifiy the minimum interval in seconds between the start of two
batch jobs (60 default).
- -d
-
Debug; print error messages to standard error instead of using
syslog(3).
- -s
-
Process the at/batch queue only once.
This is primarily of use for compatibility with old versions of
at;
atd -s
is equivalent to the old
atrun
command.
A script invoking
atd -s
is installed as
/usr/sbin/atrun
for backward compatibility.
WARNING
atd
won't work if its spool directory is mounted via NFS even if
no_root_squash
is set.
FILES
/var/spool/at
The directory for storing jobs; this should be mode 700, owner
root.
/var/spool/at/spool
The directory for storing output; this should be mode 700, owner
root.
/etc/at.allow,
/etc/at.deny
determine who can use the
at
system.
SEE ALSO
at(1),
atrun(1),
cron(8),
crontab(1),
syslog(3),
at.deny(5),
at.allow(5).
BUGS
The functionality of
atd
should be merged into
cron(8).
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