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Annotation of 42BSD/usr.lib/learn/editor/L73.1a, revision 1.1

1.1     ! root        1: #print
        !             2: Back early in this sequence we made clear that
        !             3: the shell (the normal command interpreter) and the
        !             4: editor were distinct and they didn't pay any attention
        !             5: to each other's commands.
        !             6: Sometimes you are in the editor and you really want
        !             7: to execute a shell command.  You can do that
        !             8: by prefixing it with !.  For example,
        !             9:   !ls
        !            10: will list your directory.
        !            11: Remember that "date" is the shell command
        !            12: to find out what time it is.
        !            13: Try editing the file 'bridge'; print it out,
        !            14: then, without leaving the editor, ask for the
        !            15: time and then leave the editor and say "ready".
        !            16: #create bridge
        !            17: brooklyn
        !            18: manhattan
        !            19: williamsburg
        !            20: queensborough
        !            21: george washington
        !            22: triborough
        !            23: bronx whitestone
        !            24: throgs neck
        !            25: #copyout
        !            26: #user
        !            27: #uncopyout
        !            28: grep '[A-Z].. [A-Z].. .. [0-9][0-9]:[0-9][0-9]:[0-9][0-9] ' .ocopy >/dev/null
        !            29: #log
        !            30: #next
        !            31: 74.1a 10

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