Ubuntu Short Tricks

     How to set permanent environment variable in Ubuntu

>>>  open ~/.bashrc by command:

    gedit ~/.bashrc

    or

    nano ~/.bashrc

    or 

    vi ~/.bashrc

>>>   Then add the bottom add variable like

variable_name= value

>>> Then save and your are done.

>> From Next Time restart terminal and use $variable_name, echo $variable_name

     How to zip unzip in Ubuntu

zip -r my_arch.zip my_folder

unzip my_arch.zip

tar -cvzf may_arch.tar.gz my_folder

where

• -c means "create"
• -v means "verbose" (sometimes bothersome and slowing down...)
• -z means "use (GNU)zip"
• -f XYZ declares the name of the output file. (You should chose a helping name like XYZ.tar.gz)

 

     Add “New Document” back to the right-click menu in Ubuntu 18.04

 

touch ~/Templates/"Untitled Document.txt"