On Thu, 23 Jun 2011 18:00:57 +0200, Emanuel Rumpf wrote
2011/6/23 S C Rigler <riglersc(a)gmail.com>om>:
...
Grep is fully capably capable of matching lines directly from the file
so you don't need anything piping the file to it. ...
Now, what if the file is compressed ?
There is
bzless config.tar.bz2 | grep PREEMT*
would that somehow work pipeless ?
bzgrep?
$ less
config-2.6.39.1 | grep PREEMPT
It's also possible with the angle bracket
<config.txt grep PREEMT*
BUT: I really would NOT recommend that.
If you accidentally reverse the bracket (>), you've lost....
So why do you even mention it?
But the most important point is: _don't_ use 'less' on places other than
the end of a pipe! Less is a pager whose task is to pretty-print streams
so they are human readable. Less _does_ possible modify the stream. I'll
escape transmogrify certain control characters. If you try to use zless/grep
to search for a control sequence you might be up for a surprise ...
Cheers, RalfD
--
E.R.
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Hochschule fuer Musik Freiburg
rm(a)inm.mh-freiburg.de