ps grep named

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From: Bela Lubkin <belal@caldera.com>
Subject: Re: for my education: "d f u" in ps -e listing
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bill@TechServSys.com wrote:

> I set up a small script to monitor named:
> part of that script is
> X=`ps -e | grep named`
> 
> when I look at $X I see: 
> 323 d f u 00:00:00 named
> 
> when I do 
>   ps -e | grep named
> 
> I do not get the "d f u" entries.  man ps is silent on the meaning of "d
> f u"

`ps` isn't producing those characters; the shell is.

You have three files in your current directory which match the wildcard
pattern "?": "d", "f" and "u".  JPR apparently has none; and on the
various other systems you tried, you had files named "[" and "l", etc.,
in your current directory.

Observe:

  $ X=`ps -e | grep named`
  $ echo "$X"
    468       ?    00:03:38 named
  $ echo $X  
  468 1 2 L a b f j m p q s t x z 00:03:38 named
  $ X="?"
  $ echo "$X"
  ?
  $ echo $X  
  1 2 L a b f j m p q s t x z

(I have quite a few single-char junk files in my home directory...)

You're just tripping over shell quoting.

>Bela<

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