Hi !

I'm a newbie. Intalled RH7.3 about 2 months ago...so going through a difficult time....I have some basic questions...

1. I use KDE. When I insert a CD, it starts to autorun. After closing the autorun screen....I try to take the CD out....but it doesn't come out ! So I umount it ? Why does this happen ?

2. I always heard that the porbability of Linux crashing is very less...but I actually manage to crash it.....by keying in some commands...of course I didn't know what I was doing.....so I had to do boot.

Then yesterday, I ran a KDE game...the game just wouldn't move beyond the opening intru screen.

Question is : is there an equavalent to Ctrl-Alt-Delete in RH Linux so that I can kill processes.....(I'm aware of ps -A, and then kill <process id> . But when I ran the game, the entire screen had the game on it. Couldn't do anything about it.

3. More basic stuff :
I got 3 CDs with the Red Hat 7.3 bible. When you say that gcc is present and gcc-java, does that mean the c, c++ and java compilers are present.

How do I get started to work on c++ and java ? Do I need to do anything first ?

4. A clarification on the 'export' command :
I understand the following : when you set a env variable

set ABC=$PATH:/bin/somedir;export ABC

It sets the variable ABC in the open console only. If I want to make to visible to all the shells , I will have to put it in a file (can't remember the name) .Now if I put it in that (conf) file, won't the environ vars get loaded on boot ?

But the book says that I have to mention the export command in the file as well. Why ?


Thanks !!

When you put the CD in it doesn't 'autorun', it automounts. This means the filesystem on the CD is mounted onto your computers filesystem. The reason you have to umount it before you can take the CD out is so that the CD filesystem will be removed and programs won't get confused about what's where

I doubt you crashed the OS, I would imagine that you crashed the X server which has grabbed the keyboard/mouse input so even though the OS is still running you can't input anything.
Solution: either reboot (Big Red Button situation) or log in from a different computer and kill the X server.

CTRL-ALT-BACKSPACE kills the X server. CTRL-ALT-DELETE starts the reboot sequence.

Open up a text editor and start writing code. Save it. Then compile with gcc / g++ / gcc-java

It's not an environment variable until you export it, otherwise it's just a variable for the length of time it takes to run the script (as I understand it)

HTH