TREX did not turn up after system restart

Issue: 
The TREX was not coming up after the system including DB was restarted with xuser file changed after hardware movement as a part of upgrade.

Solution:
The xuser.ini file is created but a newline character(Enter key in keyboard) was not given at the end of entries in this file. This will not create a .XUSER batch file successfully. 

We get the below kind of error while creating the batch file if entries maintained are wrong in this file.

vsa7561:nwvadm 56> xuser -b xuser_NWV.ini
Updating entry 1 for Userkey 'DEFAULT           '
Updating entry 2 for Userkey 'c                 '
Updating entry 3 for Userkey 'w                 '
Updating entry 4 for Userkey 'domain            '
Updating entry 5 for Userkey 'NWV               '
Entry 6 discarded (incomplete). Given Userkey was 'c_TREX            '
vsa7561:nwvadm 55>

So here details for ‘c_TREX’(key)/SAP<SID>TX(user) is not updated. 

So correct the entries, batch file is created successfully and TREX is up and running fine.