[Orca-users] How to exclude filesystems?

Duncan Lawie duncan.lawie at betfair.com
Thu Jan 27 05:58:33 PST 2005

I've never seen a version of orca that could handle changes in column
count - though there was talk of it back in late 1999.

	-----Original Message-----
	From: orca-users-bounces+tyger=hoopoes.com at orcaware.com
[mailto:orca-users-bounces+tyger=hoopoes.com at orcaware.com] On Behalf Of
David Michaels
	Sent: 26 January 2005 23:33
	To: Dmitry Berezin
	Cc: orca-users at orcaware.com
	Subject: Re: [Orca-users] How to exclude filesystems?
	Dmitry Berezin wrote: 

		Actually no. The number of columns is always the same
within one data file. If it changes, orcallator will start a new data
file. AFAIK, orca can not handle format changes within one data file.
Also, something like

	Oh?  I could swear I've seen some data files with multiple
header lines in them.  So, every time I mount a new filesystem, or
unmount an old one, orca creates a whole new datafile with a new header?
*looks at his data directory*  Oh, look at that.  9 data files on
Monday.  Hmm.  Was there ever a point where Orca supported column
changes mid-stream?


		head -1 data_file | gawk '{for (i=1;i<NF; i++) if
($i~"vxckpt|checkp|verita") print i, $i}' 


		will give you the column numbers that you want to
exclude. Or this


		gawk '{for (i=1;i<NF;i++) {if (NR==1 &&
$i~"vxckpt|checkp|verita") np[i]=1; if (np[i]!=1) printf $i" "};print
""}' data_file > new_data_file


		will create a new data file without the columns that you
don't want.

	Indeed, if the columns don't change for a particular file, the
gawk becomes almost trivial. :)  Thanks for the feedback -- the perl
regexp did the trick for future datafiles, and it sounds like the data
file cleaning will be easier than I first thought.


	David P. Michaels

Senior Multi-Disciplined Engineer II W.H.
Platform OS Unix
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