Ubuntu

How To Execute a Script at Reboot/Shutdown

• Write your script in /etc/rc0.d
• Make the script executable by using sudo chmod +x myscript
• Scripts in this directory will be executed in alphabetical order. The name of your script must begin with K99 to run at the right time.
• It’s the same for shutdown, but you must put your sh file in /etc/rc6.d folder

How to zip or unzip

zip -r my_arch.zip my_folder
unzip my_arch.zip

Short keys

Jump to Desktop

Ctrl + Windows + D

Open new terminal

Ctrl + Alt + T

Copy, cut, paste command line

Ctrl + Shift + C
Ctrl + Shift + X
Ctrl + Shift + V

How to scroll up/down terminal screen

Shift + Ctrl + Arrow key
Shift + Page Up/ Down

Vim

Start editting

Press "i"

Delete a line

dd

Undo, redo

:undo
:redo

Copy, cut, paste

• “Esc” key, then “v” to enter Visual mode
• Select text
• To copy, “y“
• To cut, “d“
• To paste, “p“

Suspend Vim

Ctrl-Z

Resume Vim

fg

Open new file while editing a file

:split file2

// Switch file
Ctrl-W