How to change icon theme from terminal

For example let's say that you want to download and install and set the Nordzy Yellow Dark icon theme in Linux from terminal.

Follow these steps:

• Git clone the Nordzy icon theme from there github page to somewhere on your computer such as ~/Downloads folder.

• Go to the cloned Nordzy directory in your ~/Downloads folder.

• Install the Nordzy Yellow Dark icon theme with this command:

  ./instal.sh -t yellow -c dark
  

• Once the installation has finished. If you want to find out about the name of the icon theme, navigate to this directory:

  ~/.local/share/icons

  And there you will see a folder called Nordzy-yellow-dark and this is the name of the icon theme.

• Set the icon theme from terminal with this command:

  gsettings set org.gnome.desktop.interface icon-theme 'Nordzy-yellow-dark'
  

After these steps, your icon theme will be changed to Nordzy-yellow-dark succesfully.

Check this useful link for more information about changing icon theme and gtk theme from terminal.