Answer:

In previous article, we have shows how to print the first N bytes of a file in Linux. But how to print the last N bytes of a file instead?

Solution:

# tail --byte 4 input.txt
...

The above command print the last 4 bytes of the file input.txt

Answer:

To print the first N bytes of a file in Linux, you can try the following method:

# head --byte 4 input.txt
...

The above command print the first 4 bytes of the file input.txt

Answer:

This command is very handy for finding the prime factors of number n.

E.g.

# factor 100
100: 2 2 5 5