>>15848361. Download the latest source. Found at
http://git.silverirc.com/cgit.cgi/screenfetch.git/plain/screenfetch-dev2. In a terminal, make the file executable by doing the following: chmod +x /path/to/screenfetch/screenfetch-dev
3. Then, either keep it there, or move it to somewhere in your $PATH to make it available without having to use the full path to the script.