The ed editor There's two modes in the editor: the input mode and the command mode. While in the input mode, what you type is added to the file you're editing. While in command mode, you can view or make modifications to the file. To edit a new file called joe.c you would type "ed joe.c", which puts you right into input mode. You'd then write whatever code you want. When finished, on a blank line you would enter a single period, then hit enter. This exits from input mode and puts you in command mode. When in command mode, you can modify the file (like deleting lines, for example), exit without saving your code, or exit and save the code. To delete line 1, you'd hit "1d" while in command mode. To add a line after line 5, you'd hit "5a", which would put you in input mode right after line 5. To replace line 5 you'd "5c" while in command mode. For a full list of commands available in command mode, hit "h" and enter while in the editor command mode. To exit the editor and save the file as modified, issue the "x" command at the editor. To exit without saving, use "Q". For your new object to be loaded into memory, you must update it after you've edited it. "update joe.c" will load the changes into memory. Don't forget to post questions on the Creator Bulletin Board if you're confused!
