You can change ownership of multiple accounts from within WHM,
Main >> Resellers >> Reseller Center
You just have to do 100 clicks for 100 accounts, its still better than manually writing those 100 account names on command line or in a file to be included in a command.
That is why I was asking an automated way how to do that without MANUALLY putting or clicking 100 accounts.
I know there's a way. I am NOT asking how to write it in a file one by one. Actually there is a way to extract all accounts from truedomains file. I know how to do that. I just don't know what cPanel or WHM command to run to assign an account to a reseller. I know WHM scripts are in /script directory but i dont know what to run to automate this process in SSH. Not to be rude or anything, if you can't help on how to automate then maybe it's better if you will just not reply at all.
All things work together for the good of those who love God - Romans 8:28