SPLIT(1)                                                 SPLIT(1)

          split, fsplit - split a file into pieces

          split [ -n | -e expression ] [ -f fileroot ] [ -x ] [ -y ] [
          -s suffix ] [ file ]

          fsplit [ option ] ...  [ file ] ...

          Split reads file (standard input by default) and writes it
          in n-line pieces (default 1000), as many as necessary, onto
          a set of output files.  The name of the first output file is
          fileroot (default x) with aa appended, and so on lexico-

          If one or more expressions are specified, the file divisions
          occur at each line of file which matches an expression; line
          counts are irrelevant.  The expressions are identical to
          those of grep(1). If a subexpression of expression is con-
          tained in escaped parentheses \(...\), the file name for the
          output file is the portion of the line which matches the
          subexpression, optionally suffixed by a string specified
          with the -s option.

          The first line of each output file is the matching input
          line, but it may be excluded from the output file by setting
          the -x flag.  The -y flag causes lower case letters in
          expression to match either case of letter in the input, but
          any output file names (excluding the suffix) will be forced
          to lower case.

          Fsplit splits a collection of Fortran subprograms in one
          file into separate files.  Options -f, -e, and -r set the
          file suffix: procedure `proc' will go into file `proc.f'
          (default), `proc.e', or `proc.r' accordingly.  Block data
          subprograms will go into files named `BLOCKDATA1.f', etc.

          Option -s strips off data beyond column 72 together with any
          resulting trailing blanks.

          sed(1), awk(1)