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The 'log' command can take a number of options besides the <search string>. If none is specified, then the search duration is from now back to 30 minutes ago for all types of logs (device log and app log).

Log Search with specified time range

The 'log/<string> -time <range>' can be used to define the search of log in a particular time. The '-time' format can be either a floating point numbers range, or in RFC-3339 type.

The floating point number unit is in hour. For example, 'log/container -time 0.1-0.3' will search all the logs from 0.1 hour to 0.3 hour ago for any string matches 'container'. The RFC-3339 format can be used for any time range before, for example: 'log/container -time 2022-08-15T01:35:56Z-2022-08-15T02:00:00Z' for log search in that UTC time range. The starting and ending time is limited to maximum of 5 hours.

Log Search with type

The type option can be 'dev', 'app' or 'all'. The default is 'all'.

Pub/Sub Commands

The 'pub' commands are meant for users who have extensive EVE internal knowledge. EVE-OS has many services, e.g. 'zedagent', 'zedrouter', etc. Each service publishes some configuration or status for other services to consume or subscribe. All those publications reflect the current state of EVE operation. When troubleshooting a problem, sometimes one needs to know what a service is publishing to see if it is correct. The majority of the publications is in directory '/run/<service-name>/'. A service can publish one or more types of data, which locates in it's sub-directories.

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