Agent

The Logstash agent has the following flags (also try using the --help flag)

-f, --config CONFIGFILE
 Load the Logstash config from a specific file, directory, or a wildcard. If given a directory or wildcard, config files will be read from the directory in alphabetical order.

-e CONFIGSTRING
 Use the given string as the configuration data. Same syntax as the config file. If not input is specified, 'stdin { type => stdin }' is default. If no output is specified, 'stdout { codec => rubydebug }}' is default.

-w, --filterworkers COUNT
 Run COUNT filter workers (default: 1)

--watchdog-timeout TIMEOUT
 Set watchdog timeout value in seconds. Default is 10.

-l, --log FILE
 Log to a given path. Default is to log to stdout

--verbose
 Increase verbosity to the first level, less verbose.

--debug
 Increase verbosity to the last level, more verbose.

-v
 *DEPRECATED: see --verbose/debug* Increase verbosity. There are multiple levels of verbosity available with
'-vv' currently being the highest

--pluginpath PLUGIN_PATH
 A colon-delimited path to find other Logstash plugins in

Web

-a, --address ADDRESS
 Address on which to start webserver. Default is 0.0.0.0.

-p, --port PORT
 Port on which to start webserver. Default is 9292.