Need to echo command successful if command is executed successfully

Hello,

I have written a command n shell script :

srvctl relocate service -d t1 -s s1 -i i1 -t t1 -f

If the above command executes successfully without error I need to echo

"Service relocated successfully

and If it errors out I need to trap the errors in a file and also need to make sure that the script does not terminate because of a single service relocation error.I mean it ocntinues for other services relocation if one fails but logs the error in a file

Please advise.

Best regards,
Vishal

What have you tried so far?