This is short list of all Nagios external commands. This file is
included only for reference. Athoritative list of commands is
available from Nagios documentation site:
http://www.nagios.org/developerinfo/externalcommands

ACKNOWLEDGE_HOST_PROBLEM: host_name sticky notify persistent author comment 
ACKNOWLEDGE_SVC_PROBLEM: host_name service_description sticky notify persistent author comment 
ADD_HOST_COMMENT: host_name persistent author comment 
ADD_SVC_COMMENT: host_name service_description persistent author comment 
CHANGE_CONTACT_HOST_NOTIFICATION_TIMEPERIOD: contact_name notification_timeperiod 
CHANGE_CONTACT_MODATTR: contact_name value 
CHANGE_CONTACT_MODHATTR: contact_name value 
CHANGE_CONTACT_MODSATTR: contact_name value 
CHANGE_CONTACT_SVC_NOTIFICATION_TIMEPERIOD: contact_name notification_timeperiod 
CHANGE_CUSTOM_CONTACT_VAR: contact_name varname varvalue 
CHANGE_CUSTOM_HOST_VAR: host_name varname varvalue 
CHANGE_CUSTOM_SVC_VAR: host_name service_description varname varvalue 
CHANGE_GLOBAL_HOST_EVENT_HANDLER: event_handler_command 
CHANGE_GLOBAL_SVC_EVENT_HANDLER: event_handler_command 
CHANGE_HOST_CHECK_COMMAND: host_name check_command 
CHANGE_HOST_CHECK_TIMEPERIOD: host_name check_timeperod 
CHANGE_HOST_CHECK_TIMEPERIOD: host_name timeperiod 
CHANGE_HOST_EVENT_HANDLER: host_name event_handler_command 
CHANGE_HOST_MODATTR: host_name value 
CHANGE_MAX_HOST_CHECK_ATTEMPTS: host_name check_attempts 
CHANGE_MAX_SVC_CHECK_ATTEMPTS: host_name service_description check_attempts 
CHANGE_NORMAL_HOST_CHECK_INTERVAL: host_name check_interval 
CHANGE_NORMAL_SVC_CHECK_INTERVAL: host_name service_description check_interval 
CHANGE_RETRY_HOST_CHECK_INTERVAL: host_name service_description check_interval 
CHANGE_RETRY_SVC_CHECK_INTERVAL: host_name service_description check_interval 
CHANGE_SVC_CHECK_COMMAND: host_name service_description check_command 
CHANGE_SVC_CHECK_TIMEPERIOD: host_name service_description check_timeperiod 
CHANGE_SVC_EVENT_HANDLER: host_name service_description event_handler_command 
CHANGE_SVC_MODATTR: host_name service_description value 
CHANGE_SVC_NOTIFICATION_TIMEPERIOD: host_name service_description notification_timeperiod 
DELAY_HOST_NOTIFICATION: host_name notification_time 
DELAY_SVC_NOTIFICATION: host_name service_description notification_time 
DEL_ALL_HOST_COMMENTS: host_name 
DEL_ALL_SVC_COMMENTS: host_name service_description 
DEL_HOST_COMMENT: comment_id 
DEL_HOST_DOWNTIME: downtime_id 
DEL_SVC_COMMENT: comment_id 
DEL_SVC_DOWNTIME: downtime_id 
DISABLE_ALL_NOTIFICATIONS_BEYOND_HOST: host_name 
DISABLE_CONTACTGROUP_HOST_NOTIFICATIONS: contactgroup_name 
DISABLE_CONTACTGROUP_SVC_NOTIFICATIONS: contactgroup_name 
DISABLE_CONTACT_HOST_NOTIFICATIONS: contact_name 
DISABLE_CONTACT_SVC_NOTIFICATIONS: contact_name 
DISABLE_EVENT_HANDLERS:  
DISABLE_FAILURE_PREDICTION:  
DISABLE_FLAP_DETECTION:  
DISABLE_HOSTGROUP_HOST_CHECKS: hostgroup_name 
DISABLE_HOSTGROUP_HOST_NOTIFICATIONS: hostgroup_name 
DISABLE_HOSTGROUP_PASSIVE_HOST_CHECKS: hostgroup_name 
DISABLE_HOSTGROUP_PASSIVE_SVC_CHECKS: hostgroup_name 
DISABLE_HOSTGROUP_SVC_CHECKS: hostgroup_name 
DISABLE_HOSTGROUP_SVC_NOTIFICATIONS: hostgroup_name 
DISABLE_HOST_AND_CHILD_NOTIFICATIONS: host_name 
DISABLE_HOST_CHECK: host_name 
DISABLE_HOST_EVENT_HANDLER: host_name 
DISABLE_HOST_FLAP_DETECTION: host_name 
DISABLE_HOST_FRESHNESS_CHECKS:  
DISABLE_HOST_NOTIFICATIONS: host_name 
DISABLE_HOST_SVC_CHECKS: host_name 
DISABLE_HOST_SVC_NOTIFICATIONS: host_name 
DISABLE_NOTIFICATIONS:  
DISABLE_PASSIVE_HOST_CHECKS: host_name 
DISABLE_PASSIVE_SVC_CHECKS: host_name service_description 
DISABLE_PERFORMANCE_DATA:  
DISABLE_SERVICEGROUP_HOST_CHECKS: servicegroup_name 
DISABLE_SERVICEGROUP_HOST_NOTIFICATIONS: servicegroup_name 
DISABLE_SERVICEGROUP_PASSIVE_HOST_CHECKS: servicegroup_name 
DISABLE_SERVICEGROUP_PASSIVE_SVC_CHECKS: servicegroup_name 
DISABLE_SERVICEGROUP_SVC_CHECKS: servicegroup_name 
DISABLE_SERVICEGROUP_SVC_NOTIFICATIONS: servicegroup_name 
DISABLE_SERVICE_FLAP_DETECTION: host_name service_description 
DISABLE_SERVICE_FRESHNESS_CHECKS:  
DISABLE_SVC_CHECK: host_name service_description 
DISABLE_SVC_EVENT_HANDLER: host_name service_description 
DISABLE_SVC_FLAP_DETECTION: host_name service_description 
DISABLE_SVC_NOTIFICATIONS: host_name service_description 
ENABLE_ALL_NOTIFICATIONS_BEYOND_HOST: host_name 
ENABLE_CONTACTGROUP_HOST_NOTIFICATIONS: contactgroup_name 
ENABLE_CONTACTGROUP_SVC_NOTIFICATIONS: contactgroup_name 
ENABLE_CONTACT_HOST_NOTIFICATIONS: contact_name 
ENABLE_CONTACT_SVC_NOTIFICATIONS: contact_name 
ENABLE_EVENT_HANDLERS:  
ENABLE_FAILURE_PREDICTION:  
ENABLE_FLAP_DETECTION:  
ENABLE_HOSTGROUP_HOST_CHECKS: hostgroup_name 
ENABLE_HOSTGROUP_HOST_NOTIFICATIONS: hostgroup_name 
ENABLE_HOSTGROUP_PASSIVE_HOST_CHECKS: hostgroup_name 
ENABLE_HOSTGROUP_PASSIVE_SVC_CHECKS: hostgroup_name 
ENABLE_HOSTGROUP_SVC_CHECKS: hostgroup_name 
ENABLE_HOSTGROUP_SVC_NOTIFICATIONS: hostgroup_name 
ENABLE_HOST_AND_CHILD_NOTIFICATIONS: host_name 
ENABLE_HOST_CHECK: host_name 
ENABLE_HOST_EVENT_HANDLER: host_name 
ENABLE_HOST_FLAP_DETECTION: host_name 
ENABLE_HOST_FRESHNESS_CHECKS:  
ENABLE_HOST_NOTIFICATIONS: host_name 
ENABLE_HOST_SVC_CHECKS: host_name 
ENABLE_HOST_SVC_NOTIFICATIONS: host_name 
ENABLE_NOTIFICATIONS:  
ENABLE_PASSIVE_HOST_CHECKS: host_name 
ENABLE_PASSIVE_SVC_CHECKS: host_name service_description 
ENABLE_PERFORMANCE_DATA:  
ENABLE_SERVICEGROUP_HOST_CHECKS: servicegroup_name 
ENABLE_SERVICEGROUP_HOST_NOTIFICATIONS: servicegroup_name 
ENABLE_SERVICEGROUP_PASSIVE_HOST_CHECKS: servicegroup_name 
ENABLE_SERVICEGROUP_PASSIVE_SVC_CHECKS: servicegroup_name 
ENABLE_SERVICEGROUP_SVC_CHECKS: servicegroup_name 
ENABLE_SERVICEGROUP_SVC_NOTIFICATIONS: servicegroup_name 
ENABLE_SERVICE_FRESHNESS_CHECKS:  
ENABLE_SVC_CHECK: host_name service_description 
ENABLE_SVC_EVENT_HANDLER: host_name service_description 
ENABLE_SVC_FLAP_DETECTION: host_name service_description 
ENABLE_SVC_NOTIFICATIONS: host_name service_description 
PROCESS_FILE: file_name delete 
PROCESS_HOST_CHECK_RESULT: host_name status_code plugin_output 
PROCESS_SERVICE_CHECK_RESULT: host_name service_description return_code plugin_output 
READ_STATE_INFORMATION:  
REMOVE_HOST_ACKNOWLEDGEMENT: host_name 
REMOVE_SVC_ACKNOWLEDGEMENT: host_name service_description 
RESTART_PROGRAM:  
SAVE_STATE_INFORMATION:  
SCHEDULE_AND_PROPAGATE_HOST_DOWNTIME: host_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_AND_PROPAGATE_TRIGGERED_HOST_DOWNTIME: host_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_FORCED_HOST_CHECK: host_name check_time 
SCHEDULE_FORCED_HOST_SVC_CHECKS: host_name check_time 
SCHEDULE_FORCED_SVC_CHECK: host_name service_description check_time 
SCHEDULE_HOSTGROUP_HOST_DOWNTIME: hostgroup_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_HOSTGROUP_SVC_DOWNTIME: hostgroup_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_HOST_CHECK: host_name check_time 
SCHEDULE_HOST_DOWNTIME: host_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_HOST_SVC_CHECKS: host_name check_time 
SCHEDULE_HOST_SVC_DOWNTIME: host_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_SERVICEGROUP_HOST_DOWNTIME: servicegroup_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_SERVICEGROUP_SVC_DOWNTIME: servicegroup_name start_time end_time fixed trigger_id duration author comment 
SCHEDULE_SVC_CHECK: host_name service_description check_time 
SCHEDULE_SVC_DOWNTIME: host_name service_desription><start_time end_time fixed trigger_id duration author comment 
SEND_CUSTOM_HOST_NOTIFICATION: host_name options author comment 
SEND_CUSTOM_SVC_NOTIFICATION: host_name service_description options author comment 
SET_HOST_NOTIFICATION_NUMBER: host_name notification_number 
SET_SVC_NOTIFICATION_NUMBER: host_name service_description notification_number 
SHUTDOWN_PROGRAM:  
START_ACCEPTING_PASSIVE_HOST_CHECKS:  
START_ACCEPTING_PASSIVE_SVC_CHECKS:  
START_EXECUTING_HOST_CHECKS:  
START_EXECUTING_SVC_CHECKS:  
START_OBSESSING_OVER_HOST: host_name 
START_OBSESSING_OVER_HOST_CHECKS:  
START_OBSESSING_OVER_SVC: host_name service_description 
START_OBSESSING_OVER_SVC_CHECKS:  
STOP_ACCEPTING_PASSIVE_HOST_CHECKS:  
STOP_ACCEPTING_PASSIVE_SVC_CHECKS:  
STOP_EXECUTING_HOST_CHECKS:  
STOP_EXECUTING_SVC_CHECKS:  
STOP_OBSESSING_OVER_HOST: host_name 
STOP_OBSESSING_OVER_HOST_CHECKS:  
STOP_OBSESSING_OVER_SVC: host_name service_description 
STOP_OBSESSING_OVER_SVC_CHECKS:  
