root-split command

root-split splits an input file+tree into multiple output ROOT files, each containing N entries.

Usage: root-split [options] file.root

ex:

$> root-split -o out.root -n 10 ./testdata/chain.flat.1.root

options:

-n int
  	number of events to split into (default 100)
-o string
  	path to output ROOT files (default "out.root")
-t string
  	input tree name to split (default "tree")
-v	enable verbose mode