I thought that was specific. I'm stuck on step 2 of the instructions on the wiki found here
http://www.rockbox.org/wiki/SansaE200RInstallationLinux patcher
1. You can either use the precompiled linux binary or you need to compile it yourself. If using a the precompiled linux binary, download e200rpatcher.linux32 or e200rpatcher.linux64 depending on whether you run 32 or 64-bit Linux. Otherwise, set up a development environment and download the Rockbox source via the directions here. Then, download bootloader.bin and copy that into rbutil/e200rpatcher/ and run make (requires libusb-dev installed)
2. sudo ./e200rpatcher.linux32 or ./e200rpatcher.linux64 and follow the prompts
3. If it says "Firmware Unlocked, Proceed to Step 2" then it was successful and you can continue.
I typed the command on step two (along with a dozen other variants) and it either says the command is invalid or doesn't exist.