Find a file
sudo find / -iname 'filename.ext' -print
Fix error on running pip, easy_install and openning the terminal
sudo rm -rf /usr/lib/python2.7/lib-dynload/_hashlib.x86_64-linux-gnu.so
Fix bluetooth
sudo modprobe -r btusb && sleep 20 && sudo modprobe btusb
echo btusb | sudo tee -a /etc/modules
Fix plasma memory leak
pkill plasmashell; QSG_RENDER_LOOP=threaded kstart plasmashell