General :: Place A Shell Script With Tail -f In The Back Ground?

Following script name is 123.sh and I need to put this in the background if I do 123.sh -bg this will not bring me back to the prompt but echoes what ever I put (using echo hello >> /tmp/123) in to the /temp/123 file. the only way that I have found doing this is to do "nohup 123.sh &" to put this in to the background. Is this okay or is there any better way of doing this?

#!/bin/bash
# file name is 123.sh
tail -f /temp/123 | while read line

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