{
    "mode": "info",
    "parameter": "ATD",
    "section": "",
    "url": "https://www.chedong.com/phpMan.php/info/ATD/json",
    "generated": "2026-07-05T23:42:47Z",
    "synopsis": "atd [-l loadavg] [-b batchinterval] [-d] [-f] [-s]",
    "sections": {
        "NAME": {
            "content": "atd - run jobs queued for later execution\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "atd [-l loadavg] [-b batchinterval] [-d] [-f] [-s]\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "atd runs jobs queued by at(1).\n",
            "subsections": []
        },
        "OPTIONS": {
            "content": "-l      Specifies  a limiting load factor, over which batch jobs should\nnot be run, instead of the compile-time choice of 1.5.  For  an\nSMP  system  with  n  CPUs,  you will probably want to set this\nhigher than n-1.\n\n-b      Specify the minimum interval in seconds between  the  start  of\ntwo batch jobs (60 default).\n\n-d      Debug;  print error messages to standard error instead of using\nsyslog(3).  This option also implies -f.\n\n-f      Run atd in the foreground.\n\n-s      Process the at/batch queue only once.  This is primarily of use\nfor compatibility with old versions of at; atd -s is equivalent\nto the old atrun command.\n",
            "subsections": []
        },
        "WARNING": {
            "content": "atd won't work if its spool  directory  is  mounted  via  NFS  even  if\nnorootsquash is set.\n",
            "subsections": []
        },
        "FILES": {
            "content": "/var/spool/cron/atjobs  The  directory for storing jobs; this should be\nmode 700, owner daemon.\n\n/var/spool/cron/atspool The directory for storing output;  this  should\nbe mode 700, owner daemon.\n\n/etc/at.allow, /etc/at.deny determine who can use the at system.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "at(1), at.deny(5), at.allow(5), cron(8), crontab(1), syslog(3).\n",
            "subsections": []
        },
        "BUGS": {
            "content": "The functionality of atd should be merged into cron(8).\n\n2009-11-14                            ATD(8)",
            "subsections": []
        }
    },
    "summary": "atd - run jobs queued for later execution",
    "flags": [],
    "examples": [],
    "see_also": [
        {
            "name": "at",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/at/1/json"
        },
        {
            "name": "at.deny",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/at.deny/5/json"
        },
        {
            "name": "at.allow",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/at.allow/5/json"
        },
        {
            "name": "cron",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/cron/8/json"
        },
        {
            "name": "crontab",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/crontab/1/json"
        },
        {
            "name": "syslog",
            "section": "3",
            "url": "https://www.chedong.com/phpMan.php/man/syslog/3/json"
        }
    ]
}