cpif - selectively update files

       Norman Ramsey, Tufts University.  Internet address Norman.Ramsey@tufts.edu.
       Noweb home page at http://www.cs.tufts.edu/~nr/noweb.

                                                local 10/40/2008                                         CPIF(1)

cpif is an auxiliary tool for use with notangle(1) and make(1).  cpif compares its standard input to each
       of  the named files, overwriting the file if the comparison succeeds or if the named file does not exist.
       If neither -eq or -ne is specified, the default is -ne.  Typical usage is in the following default  rule,
       suitable for use in a Makefile.
        .nw.h: ; notangle -Rheader $*.nw | cpif $*.h

       cpif - selectively update files

notangle(1)

cpif [-eq|-ne] file ...

       This man page is from noweb version 2.12.