Linux Shortcuts and Commands:
Linux Newbie Administrator Guide by Stan and Peter Klimas
This is a practical selection of the commands we use most often. Press <Tab> to see the listing of all available command (on your PATH). On my small home system, it says there are 2595 executables on my PATH. Many of these "commands" can be accessed from your favourite GUI front-end (probably KDE or Gnome) by clicking on the right menu or button. They can all be run from the command line. Programs that require GUI have to be run from a terminal opened under a GUI.
Legend:
<> = single special or function key on the keyboard. For example <Ctrl> indicates the "control" key. italic = name of the file or variable you probably …ver más…

Don't press it twice else you also log out (see the previous command).
<Ctrl>s
Stop the transfer to the terminal.
<Ctrl>q
Resume the transfer to the terminal. Try if your terminal mysteriously stops responding.
<Ctrl>z
Send the current process to the background. exit Logout. I can also use logout for the same effect. (If you have started a second shell, e.g., using bash the second shell will be exited and you will be back in the first shell, not logged out.) reset Restore a screwed-up terminal (a terminal showing funny characters) to default setting. Use if you tried to "cat" a binary file. You may not be able to see the command as you type it.
<MiddleMouseButton>
Paste the text which is currently highlighted somewhere else. This is the normal "copy-paste" operation in Linux. (It doesn't work with Netscape and WordPerfect which use the MS Windows-style "copy-paste". It does work in the text terminal if you enabled "gpm" service using "setup".) Best used with a Linux-ready 3-button mouse (Logitech or similar) or else set "3-mouse button emulation").
~
(tilde) My home directory (normally the directory /home/my_login_name). For example, the command cd ~/my_dir will change my working directory to the subdirectory "my_dir" under my home directory. Typing just "cd" alone is an equivalent of the command "cd ~".
.
(dot) Current directory. For example, ./my_program will attempt to