1 03/10/76   edit replace, edit rep
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 3 Function:  substitutes a given character string within a specified line
 4 or range of lines.
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 7 Syntax:  edit replace /old_string/new_string/line1{ line2 ... lineN}
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 9 
10 Arguments:
11 /  string delimiter.
12 old_string  string to be located.
13 new_string  string to be substituted for old_string.
14 linei  line number or range of lines within which substitution occurs.