tail functionality in Go

nxadm/tail provides a Go library that emulates the features of the BSD tail program. The library comes with full support for truncation/move detection as it is designed to work with log rotation tools. The library works on all operating systems supported by Go, including POSIX systems like Linux, *BSD, MacOS, and MS Windows. Go 1.12 is the oldest compiler release supported.

A simple example:

// Create a tail
t, err := tail.TailFile(
	"/var/log/nginx.log", tail.Config{Follow: true, ReOpen: true})
if err != nil {
    panic(err)
}
// Print the text of each received line for line := range t.Lines {     fmt.Println(line.Text) }

See API documentation.

Installing

go get github.com/nxadm/tail/...

History

This project is an active, drop-in replacement for the abandoned Go tail library at hpcloud. Next to addressing open issues/PRs of the original project, nxadm/tail continues the development by keeping up to date with the Go toolchain (e.g. go modules) and dependencies, completing the documentation, adding features and fixing bugs.

Examples