Gurus,
I've been on computers for a while, but I've yet to have the behind-the-scenes knowledge. I'm not sure if this is so much a Unix question as it is a nitty gritty computer one.
We received a customer file which had a "funny apostrophe." When displaying the file via more, the character displayed as "M-^Q". I then (in a silly moment) tried to search and replace these exact characters. When my replace failed, I realized that I should open the file in a hex editor, and in doing so, I discovered that this character is hex 91. I then changed my perl to replace \x91 and it worked like a charm.
My question: How in the world was "M-^Q" derived from hex 91?
Thanks for the enlightenment!