The tail command is a command-line utility in Unix-like operating systems used to display the end or bottom portion of a text file.
By default, it shows the last 10 lines of a file, but users can specify a different number of lines to be displayed.
Common use cases for the tail command include monitoring log files, watching file changes in real-time, and viewing live data from continuously running processes.
For example, running tail -n 20 myfile.log would display the last 20 lines of the myfile.log file.
The tail command is an essential tool for observing updates and changes in files and log streams.