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I am a tech writer and I need to include a boot dump in a document. The dump the engineers gave me has some "bad characters" that I need to delete. What form does a "bad character" take? There are lines that look like: 14;1h 0m2J0m2Jm2J1

Is any line with number followed by a semi colon an artifact?

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That stuff you show looks like parts of ESC-sequences. Do you have the original file? Then you could filter that stuff out, here is a description of the ANSI escape sequences. Get your friendly geek write you a sed(1) script to filter them out (if on Unix/Linux; there should be similar search&replace tools for other systems).

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