cd. You always use
cdalong with the name of a folder you want to navigate to:
cdcommand must exist in your current working directory. So you have to be aware of where you are, and what child folders are available, at any given time. Use the
dircommands for that.
cdcommand no matter where you are currently located:
cd ..: go back up to parent folder
cd ~, Windows:
cd \: jumps to top-most folder
cd "Program Files"
cdcommand the full path to the folder you want to go to. This is often helpful on Windows, because you can navigate to the folder using Windows Explorer and then copy the path from the address bar.
rails console. Your command prompt looks something like
2.2.4 :001 >or
2 + 3 * 4