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Jeff Lightner wrote:
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<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">I’ve always assumed xargs
processed each item as it
arrived but saw something today that made me think perhaps this isn’t
the
case.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">In essence I’m doing an
“ls –tr log.*
|xargs grep –hA 30 sometext”<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Files are log, log.1,
log.2 … log.10 where log is the
newest and log.10 is the oldest. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">My subsequent processing
relies on the information from log.10
appearing first then log.9 then log.8 … log.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">What I saw today made it
look as if it somehow grabbed log.10
at the end instead of the beginning. <br>
</span></font></p>
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Do a "man ls" and look for -r<br>
<br>
;)<br>
<br>
Jim.<br>
<blockquote
cite="mid:99E6A67A9DA87041A8020FBC11F480B30308BEE6@EXVS01.dsw.net"
type="cite">
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<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> <o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Apparently they were
doing some tweaking of logs today so it’s
possible what I saw was a result of them moving something. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">I’d just like
confirmation that xargs does in fact process
things (and display it) in the order of what is piped into it rather
than
buffering it all and deciding on its own order. <o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Nothing in the man page
seems to directly answer question
about order.<o:p></o:p></span></font></p>
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