How to test a zabbix item key using zabbix_agentd in linux ?

zabbix_agentd - Zabbix agent daemon

SYNOPSIS

      zabbix_agentd [-c config-file]

      zabbix_agentd [-c config-file] -p

      zabbix_agentd [-c config-file] -t item-key

      zabbix_agentd [-c config-file] -R runtime-option

      zabbix_agentd -h

      zabbix_agentd -V

DESCRIPTION

      zabbix_agentd is a daemon for monitoring of various server parameters.

OPTIONS

      -c, --config config-file

             Use the alternate config-file instead of the default one.  Absolute path should be specified.

      -f, --foreground

             Run Zabbix agent in foreground.

      -R, --runtime-control runtime-option

             Perform administrative functions according to runtime-option.

          Runtime control options

              log_level_increase[=target]

                  Increase log level, affects all processes if target is not specified

              log_level_decrease[=target]

                  Decrease log level, affects all processes if target is not specified

          Log level control targets

              pid Process identifier

              process-type

                  All processes of specified type (e.g., listener)

              process-type,N

                  Process type and number (e.g., listener,3)

      -p, --print

             Print known items and exit.  

          d Number with a decimal part.

          m Not supported.  This could be caused by querying an item that only works

in the active mode like a log monitoring item or an item that requires multiple collected  values.

              Permission issues or incorrect user parameters could also result in the not supported state.

          s Text. Maximum length not limited.

          t Text. Same as s.

          u Unsigned integer.

      -t, --test item-key

             Test single item and exit.  See --print for output description.

      -h, --help

             Display this help and exit.

      -V, --version

             Output version information and exit.

Examples:

How to test a item key using zabbix_agentd ?

Syntax:

zabbix_agentd -t  --test item-key

zabbix_agentd -t proc.mem[]

proc.mem[]                                    [u|3469561856]

 u give return data type from item was   Unsigned integer.

Proc.mem it give Memory used by process in bytes.

Above example it give all process total memory utilized in server .

zabbix_agentd -t system.hostname

system.hostname                               [s|linuxforfreshers.com]

Item returns data type was  s Text. Maximum length not limited.

How to find agent version ?

Syntax :

zabbix_agentd -V

Or

zabbix_agentd -t agent.version

Example:

zabbix_agentd -V

zabbix_agentd (daemon) (Zabbix) 3.0.22

Revision 84876 14 September 2018, compilation time: Sep 14 2018 07:36:14

zabbix_agentd -t agent.version

agent.version                                 [s|3.0.22]