xdotool - fake keyboard/mouse input, window management, and more
What is xdotool? This tool lets you simulate keyboard input and mouse activity, move and resize windows, etc. It does this using X11’s XTEST extension and other Xlib functions.
Additionally, you can search for windows and move, resize, hide, and modify window properties like the title. If your window manager supports it, you can use xdotool to switch desktops, move windows between desktops, and change the number of desktops.
keynav - retire your mouse.
Keynav is a piece of an on-going experiment to make pointer-driven interfaces easier and faster for users to operate. It lets you move the pointer quickly to most points on the screen with only a few key strokes.
Note that I said pointer, not mouse. The mouse simply drives the pointer. We can drive the pointer with other devices too. keynav turns your keyboard into an fast pointer mover.
fex - flexible token-field extraction
What is fex? Fex is a powerful field extraction tool. Fex provides a very concise language for tokenizeing strings and extracting fields.
The basic usage model is that you provide a series of delimiter and field selection pairs. Tokens can be any character, while field selections have a specific syntax.
Download Releases are available on GitHub.
Sometimes simpler than cut and awk cut(1) from GNU coreutils (on Linux) does not support negative offsets, so you cannot ask cut to only show you the Nth field from the end.