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Annotation of 43BSD/usr.lib/learn/files/L0.1a, revision 1.1

1.1     ! root        1: #print
        !             2: Now you should understand the special characters del and ^U:
        !             3: 
        !             4:    del    cancels the previous character typed (delete or rubout)
        !             5:    ^U     cancels the line being typed and puts you on a new line
        !             6:                (called control-u)
        !             7: 
        !             8: These are the default characters used by the system.  Commonly,
        !             9: del is replaced ^H (or backspace).
        !            10: 
        !            11: ^U is typed by holding down the CTRL (for control) key and pressing
        !            12: the letter 'u'.  The reason that there are the two characters
        !            13: '^' and 'U' to represent one special character is that ^U usually
        !            14: will not print on the screen.
        !            15: 
        !            16: If you make a typing mistake, you can use del and ^U to correct it
        !            17: before you finish the line and the computer won't ever know about it.
        !            18: For example, what will the computer really receive if you type assuming
        !            19: ^H is used instead of del
        !            20: 
        !            21: st^Hhe^Uthf^He
        !            22: 
        !            23: at it?  Figure this out in your head and reply "answer WORD" where
        !            24: WORD is the word as it will be interpreted, and don't forget RETURN.
        !            25: For example, if you think it will get "dog", type
        !            26: 
        !            27: answer dog
        !            28: 
        !            29: #copyin
        !            30: #user
        !            31: #uncopyin
        !            32: #match the
        !            33: #bad answerthe
        !            34: Leave a space between "answer" and "the".
        !            35: #log
        !            36: #next
        !            37: 0.1b 5

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