If you need to give a professor permission to view your homework, or give the world access to view your web page, use the Intranet Services form. Unix Commands Refer to these Unix references for lists of Unix commands and how to use them. If you press the up arrow key , the previous command you typed will be displayed on the screen. This is useful when you make a typographic error. You can display and edit the previous line without retyping it all.
Commands are case sensitive .
Putting a space in the wrong place, or not putting a space where it is needed, will prevent a command from operating correctly. The order of entries is important. The command may be followed by options, as appropriate. Options are preceded by a dash. The last entry is the name of a file.