I am using Ubuntu installed with virtualbox on a PC. When I type the line defined on page 87 into the .bashrc file to add my scripts folder to the recognized paths and restart the terminal window the scripts folder is the only one it recognizes. It eliminates the original paths, this makes commands like nano and ls not work anymore. I was able to change the file back in a text editor. I typed the command at the end of the file - it was the last line. Does anyone know where I should insert the line to make it function properly? Thanks!