Removing unwanted files in Knoppix

[mzilikazi]

Hello to everyone
I am new to this forum to Linux and Knoppix.
If this post is not in the proper forum please advise and I will post elsewhere.

I reckon this would go under the General support forum.

First Question:
What problems are there in removing any extras that I don't need and what will I mess up?

Now that's a broad question. When you use apt it will tell you everythinhg it's going to remove, it will usually warn you about anything serious like

You are about to do something potentially harmful
To continue type in the phrase 'Yes, do as I say!

Also, please advise as to the easiest way of removing the extras.

apt-get update
apt-get remove (application)

OR fire up Synaptic a very nice and easy to use package manager.

Second Question:
When logged in as root

You should almost never need to log in as root. This is a true multi-user system unlike weendoze where you have to be user or admin - you can simply become root or execute commands AS root with sudo.