SharpKeys Alternatives for Linux
SharpKeys is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The most popular Linux alternative is 
Key Mapper, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to SharpKeys and five of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to SharpKeys are xmodmap (Free, Open Source), xcape (Free, Open Source), X Keyboard Extension (XKB) (Free, Open Source) and 
Kinto (Free, Open Source).
- A tool to change and program the mapping of your input device buttons. With support for timed macros and some basic gamepad support. View 6 alternatives to Key Mapper
- Free • Open Source
- Linux
Key Mapper vs SharpKeys
ITS AWESOME ALTERNATIVE. SAME FUNCTIONAL! FINALLY I REBIND SPACE TO ALT_L AND ALT_L TO SPACE. GOD SAVE THIS APP! AMAZING! BEST ALTERNATIVE! OMG IM VERY HAPPY IM LOOCKING FOR IT VERY LONG - The xmodmap program is used to edit and display the keyboard modifier map and keymap table that are used by client applications to convert event keycodes into keysyms. View 18 alternatives to xmodmap
- Linux utility to configure modifier keys to act as other keys when pressed and released on their own. View 5 alternatives to xcape
- Defines the way keyboards codes are handled in X, and provides access to internal translation tables. It is the basic mechanism that allows using multiple keyboard layouts in X. View 5 alternatives to X Keyboard Extension (XKB)
- Type in Linux & Windows like it's a Mac. Seamless copy and paste with all apps and terminals. The zero effort solution. What's different? View 5 alternatives to Kinto