Bison is a parser generator in the style of yacc (1).  It should be
upwardly compatible with input files designed for yacc.  Input files
should follow the yacc convention of ending in ".y".  Unlike yacc, the
generated files do not have fixed names, but instead use the prefix of
the input file.  For instance, a grammar description file named
parse.y would produce the generated parser in a file named
parse.tab.c, instead of yacc 's y.tab.c.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
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-rw-rw-r-- 20025/200    470378 1392640  33.8% -lh5- e276 Mar 30  1998 bison-1.25-bin.tar
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 Total         1 file   470378 1392640  33.8%            Mar 16  1998