if you are asked to enter a cd when you use apt-get install <package> or apt-get update, you need to edit the file /etc/apt/sources.list....

Locate a file on a unix or linux directory and all sub-directories use: #  find . -name filename -print

Following is a list of commands you can get information about your system. Some commands are system specific i.e. will work on debian, but not on...

wall displays the contents of a file and broadcasts it to all terminals, of all users currently logged in. Only a superuser can write to a...