Binary package “doublecmd-gtk” in ubuntu disco

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.