..so if I read this right, you are not interested in lines that begin with h(lower case). You are only interested in outputting lines that start with j, E, or G. If that is in fact the case, then the problem should be pretty simple. Read the file into an array, loop through the array line by line using a regex to check for lines beginning with j, E or G and print them out. I get the impression I am missing something here... What importance do the lines beginning with h(lower case) have to you?
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