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Annotation of 43BSD/usr.lib/learn/editor/L6.1a, revision 1.1

1.1     ! root        1: #print
        !             2: You may well ask how the editor knows which line to print.
        !             3: The editor keeps track of the 'current line', which
        !             4: is usually the last line you touched in any way.
        !             5: When you begin editing a file, for example, the
        !             6: current line is the last line.
        !             7: If you want to print any particular line, however,
        !             8: that is easy.  For example, to print the 3rd line you say
        !             9:   3p
        !            10: To print the first line
        !            11:   1p
        !            12: (That's a one, no matter how much it looks like the letter "l".)
        !            13: Here is a file: I'll put you into the editor
        !            14: with that file as the 'current file' - print the 4th line,
        !            15: then type 'w', 'q', and "ready" as usual.
        !            16: #create Ref
        !            17: :james madison
        !            18: #create file
        !            19: george washington
        !            20: john adams
        !            21: thomas jefferson
        !            22: james madison
        !            23: james monroe
        !            24: john quincy adams
        !            25: #print file
        !            26: #copyout
        !            27: #pipe
        !            28: ex +'set prompt noopt open' file
        !            29: #user
        !            30: #unpipe
        !            31: #uncopyout
        !            32: grep madison .ocopy >X2
        !            33: #cmp Ref X2
        !            34: #log
        !            35: #next
        !            36: 7.1a 10

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