It's difficult to know how to best respond, or provide the best answer, without a bit more context. IOW you mention match, which is really a simple matter, as described in the linked Perl documentation -- especially if the given text file is static.

But, then again. If you need to further process that file, or perhaps another file. The (best) answer might be quite different.

tl;dr;
You will need to help us, help you.

Evil is good, for without it, Good would have no value
¡λɐp ʇɑəɹ⅁ ɐ əʌɐɥ puɐ ʻꜱdləɥ ꜱᴉɥʇ ədoH


In reply to Re: Print n lines after a matched line by taint
in thread Print n lines after a matched line by sreek3502

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