Install doublecmd-gtk by entering the following commands in the terminal:
sudo apt update sudo apt install doublecmd-gtk
Description:
twin-panel (commander-style) file manager (GTK2)
Double Commander is a cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas. . Support for RAR archives can be enabled by installing the libunrar0 package from non-free. . This package contains the GTK2 user interface.
Homepage: http://doublecmd.sourceforge.net/
Version: 0.8.2-1
Section: universe/utils