--- John Summerfield debian@herakles.homelinux.org wrote:
Will McDonald wrote:
On 14/03/07, John Summerfield
debian@herakles.homelinux.org wrote:
Will McDonald wrote: It might be quicker, but that doesn't make it
more efficient;-)
And that's why I mentioned it'd be wise to test :)
I know things are
never cut 'n dried and it depends on log makeup,
datasets and whatnot.
There's always dozens of ways to do things and no
one way is perfect.
Or even best for everyone.
I often "evolve" my commandlines (I commonly use
one that's 500+
characters long) and if I don't start with a cat
I often wish I did:-/
I can't think of a single instance of needing to
'cat | somethingelse'
unless 'somethingelse' doesn't accept STDIN unless
explicitly told
to. I could obviously be missing some corner case
or just be ill
educated? :)
cat /var/log/messages | grep is more easily changed to include another file cat /var/log/messages{.0,} | grep than grep cat /var/log/messages to grep -h cat /var/log/messages{.0,} | grep -h Note, I'm often typing through a modem and have to contend with unpredictable response times.
Even worse is changing to include compressed files: (gunzip -dc /var/log/messages.{4,3,2,1}.gz;cat /var/log/messages{.0,})\ | grep
does zcat for looking at compressed files work on linux? i know it use to work on HP-UX a while back. instead of uncompressing the file and then reading it. I have not used it for a while so dont hold me to it.
I need to do this kind of thing fairly often.
--
Cheers John
-- spambait 1aaaaaaa@coco.merseine.nu Z1aaaaaaa@coco.merseine.nu
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Steven
"On the side of the software box, in the 'System Requirements' section, it said 'Requires Windows or better'. So I installed Linux."