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Converting image based subtitles to text is a nontrivial process, as you will need some kind of OCR system to interpret the bitmaps and figure out what the corresponding text is. ffmpeg alone will not do that for you. I am not aware of any app that will do the whole process in one go, for Linux/UNIX. However, this process should work: Extract the ...


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I'm not sure why Perl isn't acceptable here. On the inputs you provided, this line gives the output you asked for: perl -0777p -e 's/.* > (.*) joined the channel\.\n(((?!.* \1 (was kicked from channel\.|was banned from channel\.)\n).*\n)+?.*\1 disconnected)/\2/mg' irc.txt The -e argument is exactly the first argument to your magicregextool except that ...


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Mathematica is expensive, but there are several free alternatives. See https://en.wikipedia.org/wiki/List_of_computer_algebra_systems - many of these are Free Software with BSD or GPL licenses. If you use Linux, Axiom (or one of its major forks, OpenAxiom), Maxima, and/or Scilab are probably already packaged for whatever Linux distro you use. BTW, ...


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Wolfram Mathematica has a command line interface, so you can use it in shell, but it is expensive.


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Here are some steps you can take. Ensure that your Linux kernel version is at least 3.19 and that you have the Intel Linux NVMe drivers installed. If that does not help consider installing the Linux NVMe command line interface. Hope this helps.



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