How to display the last lines?

To display the last lines of a file, you can use the tail command. Here’s how you can do it:

Display the last 10 lines (default):
```
tail filename.txt
```
Display a specific number of last lines:
Use the -n option followed by the number of lines you want to see. For example, to display the last 5 lines:
```
tail -n 5 filename.txt
```
Display the last N bytes instead of lines:
You can use the -c option to view the last N bytes. For example, to view the last 20 bytes:
```
tail -c 20 filename.txt
```

These commands will help you view the end of a file as needed.