shell script to check blank line?

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Old 06-07-2011
shell script to check blank line?

Can someone help to transform the below logic into a shell script, might be easy for some of you.

I have a file with below text, I need if the line has the ":" and the above to it is not a blank line should print " <text>: is incorrect format"

vitamin = A
vitamin = A

vitamin = C

So, If I run the script on above file, it should say Banana: is not a correct format

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Mod Comment Double post, continued here

Last edited by pludi; 06-07-2011 at 08:39 AM..
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