You will need to do this with chown from the  c library functions  (could do 
this from perl or python).   If you try to change this from a shell script  you 
will hit the Linux command  which will have a lot more overhead.     I had a 
customer attempt this using the shell and it ended up taking forever due to a 
brain damaged NIS service :-).    

Jim  

    On Monday, June 8, 2020, 2:01:39 PM EDT, Lohit Valleru 
<[email protected]> wrote:  
 
 #yiv6988452566 body{font-family:Helvetica, Arial;font-size:13px;}Hello 
Everyone,
We are planning to migrate from LDAP to AD, and one of the best solution was to 
change the uidNumber and gidNumber to what SSSD or Centrify would resolve.
May I know, if anyone has come across a tool/tools that can change the 
uidNumbers and gidNumbers of billions of files efficiently and in a reliable 
manner?We could spend some time to write a custom script, but wanted to know if 
a tool already exists.
Please do let me know, if any one else has come across a similar situation, and 
the steps/tools used to resolve the same.
Regards,Lohit_______________________________________________
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