How to ignore certain histograms when merging files with hadd?

[couet]

May be you can try:

How to Quickly Inspect the Content of a File?

Note: The root command line tools were released with ROOT 6.06. ROOT provides command line tools that allow you to quickly inspect and modify the content of ROOT files. They can be divided in two categories: The ones having a behaviour which is compatible with the widely known *nix tools like ls, rm, mkdir. rootls : list the content of a ROOT file. rootcp : copy objects stored in a file to another file. rootrm : delete objects contained in a file. rootmv : move objects stored in a file …