When comparing Ranger NCurses file manager with Vim bindings vs SpaceFM, the Slant community recommends SpaceFM for most people. In the question“What are the best GUI file managers for UNIX-like systems?” SpaceFM is ranked 6th while Ranger NCurses file manager with Vim bindings is ranked 14th. The most important reason people chose SpaceFM is:
Just right click on any menu or menu option (including the context menu itself) and you'll be allowed to customize it. This lets you add support or integration for features you find missing.
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Pros
Pro Fast response
This is a NCurses GUI so it is a command line program with a user interface of shortcut keys which allows for a fast response.
Pro Detailed previews
The program will give previews in the terminal with detailed information concerning the file.
Pro Bookmark system
Makes it easy to jump to any specific folder locations you work with.
Pro Extremly minimal GUI interface
Pro Incredibly customizable
Just right click on any menu or menu option (including the context menu itself) and you'll be allowed to customize it. This lets you add support or integration for features you find missing.
Pro Minimal dependencies
It only needss gtk, udev, desktop-file-util and shared-mime-info which is available in most systems.
Pro Highly extensible
Functionalities can be extended by user scripts as plugins. Some scripts can also be downloaded from https://github.com/IgnorantGuru/spacefm-plugins/wiki. Plugins can be exported too.
Pro Tab and panel support
SpaceFM supports up to 4 individually customizable panels as well as multi-tabbed file management.
Pro No back seat driver
Does not obstruct professional work by engrossing root warnings.
Pro Desktop management support
Can be used to set wallpaper and desktop icons with high configuration support.
Pro Easily open folder as root
Can open different folders as root, this way you don't have to use the terminal to move around files for which you need root permission.
Pro Gtk-2 and 3 support
Available in gtk2 and gtk3.
Pro Intuitive and extendable through plug-ins
Great UI, easy to use and configure, several plug-ins available to make everyday tasks even easier.
Cons
Con Steep learning curve for people who are not used to Vim
Since it uses many of vim's keybindings, it may be hard for someone who does not use vim or does not know how to use vim to learn how to work with this file manager.
Con Extremly minimal GUI interface
Almost everything is a shortcut key. Using ? is essential to learning this program. To show hidden files it is z-h.
Con Ugly
Con Some operations are slow
Because it tries to be as lightweight as possible and tries to use very little RAM. This can unfortunately lead to it being slow sometimes.