.TH SPLIT 1 .SH NAME split \- split a file into pieces .SH SYNOPSIS .B split [ .B \-\fIn ] [ file [ name ] ] .SH DESCRIPTION .I Split reads .I file and writes it in .IR n -line pieces (default 1000), as many as necessary, onto a set of output files. The name of the first output file is .I name with .B aa appended, and so on lexicographically. If no output name is given, .B x is default. .PP If no input file is given, or if .B \- is given in its stead, then the standard input file is used.