Re: hadd with file list

When sending mails to roottalk, always specify your version of ROOT. The facility to add with a file list was added in January 2007. If you use versions 5.16 or above it should be included. The help file/doc says:
  Wildcarding and indirect files are also supported     hadd result.root myfil*.root
   will merge all files in myfil*.root
    hadd result.root file1.root @list.txt file2. root myfil*.root     will merge file1. root, file2. root, all files in myfil*.root     and all files in the indirect text file list.txt ("@" as the first     character of the file indicates an indirect file. An indirect file     is a text file containing a list of other files, including other     indirect files, one line per file).

Rene Brun
Jorge Armando Benitez wrote:
> Hi All,
>
> I wonder if it is posible to use hadd with a file list (text tile
> containing the root files to be merged)
>
> I tried the option
>
> hadd newfilename.root @filelist.txt
>
> but i get the following error
>
> Error in <TFile::TFile>: file @filelist.txt does not exist
> Error in <TList::AddLast>: argument is a null pointer
> .....
>
> I tried the hadd --help but not information about using a files list
> is shown.
>
> Thank you,
>
> Jorge
>
Received on Mon Jun 02 2008 - 17:10:35 CEST