Thread: [Support thread] Billboard Standby Screen
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thedead1440 is offline thedead1440
2013-03-30 , 04:02
Moderator | Posts: 6,215 | Thanked: 6,400 times | Joined on Nov 2011
#767
Win7Mac,

If you want to check for a number in your output and give an empty output while giving a non-empty output when there is an alphabet with the number you could use test this way:

Code:
test -z "$NN" -o -n "`echo $NN | tr -d '[0-9]'`" && echo $NN
 

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