MUCH OF THE MATERIAL AT THIS SITE IS RELATED TO SCO OSR5. OSR5 is Unix, so SOME of what you'll find here is useful if you are running Unixware, Solaris, Linux or whatever, but if your specific OS is not specifically mentioned, take whatever you read as being POSSIBLY WRONG FOR YOU.
The best way to find something is to use the Search Tools (https://aplawrence.com/search.html) at this site. Every FAQ article is extensively indexed, so that really is the best way to find anything. Try it before you get eyestrain reading through the index. The searches also index other material NOT in the FAQ, which is yet another reason to use them.
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After establishing competence and ability, your customer wants to know that you are honest and that you care about their needs. Sell that, because that's what they really want to buy. (Tony Lawrence)