Unix Version 7 - man page for split (v7 section 1)

SPLIT(1)			     General Commands Manual				 SPLIT(1)

NAME
       split - split a file into pieces

SYNOPSIS
       split [ -n ] [ file [ name ] ]

DESCRIPTION
       Split reads file 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 name with aa appended, and so
       on lexicographically.  If no output name is given, x is default.

       If  no input file is given, or if - is given in its stead, then the standard input file is
       used.

											 SPLIT(1)