SystemG is a free file manager that provides access to the UNIX filesystem
with an intuitive front end. It currently allows in place name editing, in
place editing of file permissions, and sorting by name, user, group, size
and data. Files are moved and copied by dragging the files. The
drag-and-drop functionality in SystemG is fully X Drag-and-Drop (XDND) and
X Direct Save (XDS) compliant.

More information about SystemG is available at:

  http://www.its.caltech.edu/~glenn/systemg/

License:

SystemG is free.
