split - split a file into pieces

Example

To split large.mp3 into separate files of one
megabyte each, whose names begin with
large.mp3., type:

split -b1m large.mp3 large.mp3

Then reconstruct the original file with cat
To reconstruct the original file from the split
files, type:

cat large.mp3.* > large.mp3

Options

-l, --lines=NUMBER
put NUMBER lines/records per output file

-b, --bytes=SIZE
put SIZE bytes per output file