I don't know the origin of the word init in linux but I think it comes from the word initiating or initiate. I am not familiar with unix but they have the same command.

Init 6 is to reboot the system. Init 0 is used to halt the system and init 1 is to get the system into single user mode. The three numbers are runlevels that are reserved.



Init is the parent of all processes. Its primary role is to create processes from a script stored in the file /etc/inittab.(init - Linux Command - Unix Command)

I have forgotten already many of the commands in linux but the Internet is really a good way to find help.

I started using redhat linux in 2003 when flash drives still needs to be configured to be detected by the system. That was very enjoyable then when only a few of us in the office could really operate a linux system. hehehe.

Linux is becoming too friendly so I've decided to use windows OS.