Hotkeys for terminal advanced usage

Web Source: http://allhotkeys.com/ubuntu_hotkeys.html

the most useful and less known commands:

1) Ctrl+D = Log out from the current terminal. In X, this may log you out after a shuting down the emulator.
It is very useful if you have a lot of open terminals(with ssh connection to remote server) and you want to logout from them quickly(without typing 'exit' in each on them)

2) Ctrl+R = History search (Finds the last command matching the letters you type).
Previously I used "history | grep my_command", but this looks like more elegant.

3)Ctrl+L = Clears terminal output.

Hotkey Maximize and Minimize window in Ubuntu 12.04 (Unity)

In older Ubuntu there was hotkey(shortcut) to Maximize and Minimize window.

In Unity(12.04) these was changed:

Maximize - Ctrl+Super+UpArrow

Minimize - Ctrl+Super+DownArrow

source.

Linux command 'Less' short list of commands

Linux command 'Less' short commands:
source, source2.

h - show help

f - scroll page forward
b - scroll page backward
g or "<" - go to begin of the file
G or ">" - go to end of the file

/PATERN - search
n - search for next appearance
N - search for previous appearance


tail mode:

Press Shift-F. This will take you to the end of the file, and continuously display new contents. In other words, it behaves just like tail -f.
To start less in the tail mode, execute:
$ less +F /var/log/messages
To scroll backwards, you must first exit the follow mode by pressing Control-c.

reload latest lines from file, one time 'tail mode':
Shift+G - got to the end of file
Shift + ">" - load till the end of file, press few times if you expect changes to file.