Changing host name in Linux

Question

I am a newbe using Linux and Ubuntu. I have purchased two Ubuntu books to get
started. The only mention of "host name" in either book is during install.
During the install I had a typo entering the "host name" and would now like to
change it. What command do I use to change the "host name" for my computer?

Answer 1

You just need to edit /etc/hostname file whatever your text editor is.
Just make sure you have enough privilege to edit it.