grep feature-request

[Jan Tegtmeier]

Hi,

I want to submit a feature-request for the grep-utility:

Background:
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I have to split logfiles by something. I have to run
# cat logfile|grep "matchcode" > logfile-part1
# cat logfile|grep -v "matchcode" > logfile-part2

Feature:
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A parameter to indicate that non-matching-lines are written to stderr
instead of skipping them.

Solution:
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With this switch (e.g. -X) you could speed up this and only execute
# cat logfile|grep -X "matchcode" > logfile-part1 2> logfile-part2

Regards,
  Jan Tegtmeier
  NetGate Internetservice / Germany