We are not asking you out of this site; we are asking you to pay attention to the suggestions that have been made, we are asking you to clearly describe the format of the input you are processing, we are asking you to clearly describe the output you are trying to produce, we are asking you to answer the questions that we ask, and we are asking you to show us the output you get when you try to run the code we suggest. We are asking you to actively participate in the production of the code needed to produce the output you want! (Note that saying: "It doesn't work." without showing us the EXACT diagnostic messages produced DOES NOT HELP US HELP YOU.)

Above you have shown us a script that you say produces the output you want, but runs too slow. If your input records are in the same order as the output you want, that script could be replaced by a single grep command. But, the multi-line output this code produces is nothing at all like the single output line per input record CSV format output that you said you wanted in your other thread. And, in this thread, you have said that you want only two output fields (but it isn't clear whether the first field is the entire line started with dn: , whether you just want the mscId=value, or whether you want anything at all from that line other than to note that it is the 1st line of each input file record.

For us to to be able to help you in either of these threads, you need to understand what output you are trying to produce, explain clearly to us what that output format is, and show us exactly what output you want produced from a representative sample input file.

You have said that there are some records with emcrypted (sic) values that are to be ignored, but you haven't given us any indication of how to determine which records are to be included and which records are to be ignored. Please clarify your requirements in this regard.