Legenda:

- tty = any kind of terminal, or serial port, represented in the device hierarchy as /dev/tty
- PID = process ID
- UID = user ID number -> by which the system knows the account. This is how Unix represents the user (instead of using the username)
- GID = group ID -> the primary, or default, group to which the account belongs
- daemon = a program that works in the background and performs repetitive services
- protocol = a standard method for transferring information between two different systems
- inode = Every file in Unix has a number, called an inode,associated with it. Unix refers a file using the inode which is unique to a partition
- block = 512 bytes of data