how to reset settings in terminal

i was fooling around with my android phone and terminal the other day, and i got myself into a little jam and dont know what to do. whenever i open up a new terminal window, it will tell me the last login info on the first line and on the second line, it says -bash: sdkfolder: No such file or directory. i tried deleting the com.apple.Terminal.plist file, but nothing happens. help please?