The tail command in Linux is used to display the last part of a file. It is commonly used for viewing log files or any file where you want to see the most recent entries. Here are some key features of the tail command:
- Default Behavior: By default,
tailshows the last 10 lines of a file. - Custom Line Count: You can specify the number of lines to display using the
-noption (e.g.,tail -n 20 filenameto show the last 20 lines). - Real-time Monitoring: The
-foption allows you to monitor a file in real-time, displaying new lines as they are added (e.g.,tail -f filename). - Byte Display: You can also display the last specified number of bytes using the
-coption (e.g.,tail -c 100 filenameto show the last 100 bytes).
Overall, tail is a useful command for quickly accessing the most recent data in files, especially in system administration and debugging tasks.
