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Annotation of 42BSD/usr.lib/learn/editor/L57.1a, revision 1.1.1.1

1.1       root        1: #print
                      2: For symmetry, you can use
                      3: 
                      4: +
                      5: 
                      6: instead of either ".+1p" or an empty line (just a newline).
                      7: The only advantage that + has is that you can repeat it:
                      8: 
                      9: ++
                     10: 
                     11: prints the second following line, and 
                     12: 
                     13: +++
                     14: 
                     15: the third.  The same is true of -.  If the current line is
                     16: line number 10, what line number is -- going to be?
                     17: (Hint:  you can find out by editing a file such as "pres",
                     18: saying "10p", and then saying "--",
                     19: and then saying ".=" - remember the "=" command?)
                     20: When you find out, type "answer N" where
                     21: N is the number.
                     22: #create pres
                     23: George Washington
                     24: John Adams
                     25: Thomas Jefferson
                     26: James Madison
                     27: James Monroe
                     28: John Quincy Adams
                     29: Andrew Jackson
                     30: Martin van Buren
                     31: William Henry Harrison
                     32: John Tyler
                     33: James K. Polk
                     34: Franklin Pierce
                     35: Millard Fillmore
                     36: James Buchanan
                     37: Abraham Lincoln
                     38: #copyin
                     39: #user
                     40: #uncopyin
                     41: #match 8
                     42: #log
                     43: #next
                     44: 60.1a 10
                     45: 60.2a 5

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