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Annotation of 43BSD/usr.lib/learn/files/L0.1a, revision 1.1.1.1

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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