wget http://www.rarlab.com/rar/rarlinux-3.8.0.tar.gz
tar zxvf rarlinux-3.8.0.tar.gz cd rar make make install
The / etc directory compressed into etc.rar command:
rar a etc.rar /etc
The etc.rar unzip command:
rar x etc.rar unrar -e etc.tar