Hi all,
I have a silly question, but I could not find the solution anywhere. I want to check from the terminal if my tree, called “Entries” has branches which start with “Electron” in its name and I want them listed.
As I remember from past, I was able to check it in a following way:
Events->Print("Electron*") but now it just gives me the full list of the branches as an output. So I guess, I remember wrongly 
P.S. I know for sure that there are various variables stored in the tree, like Electron_pt, Electron_eta, etc.
Thanks in advance!
Newbie
Hi @beg1nner,
Using Print seems to work in my case, it is a bit verbose but it is giving only the branches that pass respect the wildcard I use:
root [0] TFile f{"Run2012BC_DoubleMuParked_Muons.root"};
root [1] std::unique_ptr<TTree> t{f.Get<TTree>("Events")};
root [2] t
(std::unique_ptr<TTree> &) std::unique_ptr -> 0x55ec47750410
root [3] t->Print("Muon*")
******************************************************************************
*Tree :Events : Events *
*Entries : 61540413 : Total = 4463735053 bytes File Size = 2243340472 *
* : : Tree compression factor = 1.99 *
******************************************************************************
*Br 0 :Muon_pt : Muon_pt[nMuon]/F *
*Entries : 61540413 : Total Size= 843506272 bytes File Size = 634763632 *
*Baskets : 523 : Basket Size= 25600000 bytes Compression= 1.33 *
*............................................................................*
*Br 1 :Muon_eta : Muon_eta[nMuon]/F *
*Entries : 61540413 : Total Size= 843506799 bytes File Size = 653064868 *
*Baskets : 523 : Basket Size= 25600000 bytes Compression= 1.29 *
*............................................................................*
*Br 2 :Muon_phi : Muon_phi[nMuon]/F *
*Entries : 61540413 : Total Size= 843506799 bytes File Size = 652361580 *
*Baskets : 523 : Basket Size= 25600000 bytes Compression= 1.29 *
*............................................................................*
*Br 3 :Muon_mass : Muon_mass[nMuon]/F *
*Entries : 61540413 : Total Size= 843507326 bytes File Size = 102175256 *
*Baskets : 523 : Basket Size= 25600000 bytes Compression= 8.26 *
*............................................................................*
*Br 4 :Muon_charge : Muon_charge[nMuon]/I *
*Entries : 61540413 : Total Size= 843508481 bytes File Size = 162126603 *
*Baskets : 524 : Basket Size= 25600000 bytes Compression= 5.20 *
*............................................................................*
What do you see in your case?
Cheers,
Vincenzo
From both posts here … a physics hypothesis can be derived … it only works for “muons” but doesn’t work for “electrons”. 
How about you try “taus”? 
