jlv is the Go program for viewing log files in json format with vi-like commands. At the moment it supports listing, filtering and searching on Linux systems.

Requires go 1.11+

go get github.com/vc2402/jlv
go build github.com/vc2402/jlv

Make sure that bin in your PATH (whether add ~/go/bin to your PATH or put jlv from there in directory that ii in the PATH)

jlv <file-name>

:f/<tag>/<value>/<opts>, where:

• tag - tag to filter (use tab to select from known tags)
• value - value to compare tag's value with
• opts - optional options ('+' - equal to or greater than; '-' - equal to or less than; '$' - regexp)

:s/<tag>/<value>/[$] looks for value in tag's value as substring; '$' means that value is regexp

/<value>
?<value>

• add check and reread if file modified (new lines added)
• add posibility of reverse file
• add streaming functionality
• add multithreading (background filtering and searching)
• add web browsing functionality (api + simple gui)