tail command means Print the last 10 lines of each FILE to standard output.

Syntax
tail [OPTION]… [FILE]…
In man page the describe it
- tail – output the last part of files.
- man tail– More details information about tail command.
tail command in Linux with Examples
$ tail devopsroles.log
$ tail -f devopsroles.log
Conclusion
tail command is the simple the command in Linux. It is the most popular in use terminal Linux output the last part of files.