Re: Sort problem . .

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Article #259

#259

From: Arlie Davis
Date: Sun, 02 Aug 1992 06:27

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In <1992Aug2.050145.7158@chpc.utexas.edu> aswx266@chpc.utexas.edu (Michael Lemke) writes:
[source editting for correcting nasty output programs deleted]

> No.  You hacked ps.  What about w, finger...?  Once you got the wrapper 
> you got them all.  You might even got how to attack those which spit out
> two header lines....

Quite often, you *can't* hack the source, especially with ps, w, xload, and
anything that must have root setuid privileges.  Also, if you can't get
the source for the particular program in question, due to political reasons,
or just plain availability, then you're still stuck.

> >No functionality is lost, some
> >is added. 
>
> Maybe not.  Don't know if ps returns a useful exit status but if it does
> this will break:   ps -some_option >/dev/null || echo 'Warning....'

I don't see how tweaking output would break the output status.

-- 
lrwx------   1 aldavi01 emacsstu       9 Jun  6 12:43 .signature -> /dev/null

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Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!ames!tulane!ukma!vlsi!starbase.spd.louisville.edu!aldavi01
From: aldavi01@starbase.spd.louisville.edu (Arlie Davis)
Subject: Re: Sort problem . .
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Date: Sun, 2 Aug 1992 06:27:32 GMT
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