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#print
A very useful command is the command
  diff x y
which compares the two files x and y and tells
you any differences between the files.  If the files
are the same, it says nothing.  To test that,
copy file "george" onto file "harry";
then say
  diff george harry
to verify that the files are the same.
#create george
london bridge
is falling down.
#copyin
#user
#uncopyin
#match diff george harry
#match diff harry george
#log
#next
12.3b 2