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[2004-07-29] How "ps" Works And Why
The simple "ps" command has generated a fair amount of confusion. Almost every Unix variant does it slightly differently; flags have different meanings and column headers or position also differ. This wreaks havoc with cross-platform scripts and has also caused bitter comments now and then. As I explained at I_WANT_A_BROKEN_PS , I had the same misunderstandings. Albert Cahalan (author of the Linux procps package, which includes "ps") noticed a newsgroup thread where I had made such a comment, and took the time to reply to me. After reading his explanation, I understand that I was quite wrong.
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