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From: "Simon Willcox" <simon AT bluebearsystems DOT com>
To: <cygwin AT cygwin DOT com>
Subject: FW: 'find | xargs -n100 -i{} echo "{}"': works, but is slower than without "-i{}"
Date: Fri, 22 Jun 2001 10:50:57 +0100
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Try

find . -type f -print0 | xargs -0 grep etc

Simon



-----Original Message-----
From: cygwin-owner AT sources DOT redhat DOT com
[mailto:cygwin-owner AT sources DOT redhat DOT com] On Behalf Of Karr, David
Sent: 21 June 2001 19:37
To: 'cygwin AT cygwin DOT com'
Subject: 'find | xargs -n100 -i{} echo "{}"': works, but is slower than
without "-i{}"


I work on a project where some of the files and directories were created
with spaces in them.  That will eventually be rectified, but it's hard
to
say when (we use a CM system that doesn't make this easy to deal with).

I often find that I have to do "find | grep" operations.  I realized I
couldn't get this to work unless I did something like this:

   find . -type f | xargs -n100 -i{} grepf searchstring "{}"

I use "-n100" to try to make it somewhat more efficient than starting a
process for each line, although I still need to pay attention to
command-line length limits.  The combination of '-i{}' and '"{}"' makes
it
so that directories with spaces in them will be handled correctly.
Without
that, "grep" tries to search in the wrong directories (or nonexistent
directories, most likely).

This works.  However, I accidently discovered that using "-i{}"
essentially
causes my "-n100" option to be ignored.  When I changed my "command" to
just
prepend "echo" to the command line, I found it was executing one command
for
each file, as opposed to one command for each 100 files.  This
considerably
slows down my tree searches.

Is there any way to get back my more efficient command line, while still
working with my annoying "spacy" directories?

I was actually able to repeat this on both Cygwin and a Linux system, so
perhaps this is "defined" behavior.

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