|

cwb_setchunk
~~~~~~~~~~~~~~~~~

|
| **Usage**
|
| This command add a chunk id leaf to the merged root files.
  It is used to assign a unique tag id to a the root entries. Different
  merged root files can be merged and the different chunks can be selected
  using the chunk parameter.
|
| **Syntax**
|

 - ``cwb_setchunk mlabel/list id``

  -  **mlabel/lists** same label used by cwb_merge, if the user writes
     lists it list the available labels
  -  **id** is the chunk id (must be integer > 0) new root files are
     generated, a label will be added to the new merged files names (M1 ->
     M1.K_chunk'id')

|
| **Examples**
|

 .. code-block:: bash

    * cwb_setchunk M1 1

      if the input file is with name: merge/wave_S6A_BKG_L1H1_run1.M1.root
      the output file assumes the name: merge/wave_S6A_BKG_L1H1_run1.M1.K_chunk1.root
      and the same for live file.