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From: p0070030@brookes.ac.uk (brownsey ken)
Newsgroups: comp.unix.bsd.bsdi.misc
Subject: awk and variables
Date: 15 Aug 1995 17:45:08 +0100
Organization: Oxford Brookes University
Lines: 34
Message-ID: <40qiuk$bge@cs3.brookes.ac.uk>
NNTP-Posting-Host: cs3.brookes.ac.uk
Summary: How to pass numric variables to awk
Keywords: awk, variables, numeric
X-Newsreader: TIN [version 1.2 PL2]
--
Ken Brownsey
Computing and Mathematical Sciences
Oxford Brookes University
Oxford OX3 0BP
0865-483-683
kwb@brookes.ac.uk
Suppose that I want to list all files greater than max in size.
# for the C shell
BEGIN {}
{if ($4 >= max) print $4, $5, $6, $7, $8}
END {}
then I call awk as follows
ls -l | awk -f files -v max=1024
this produces all the files.
If I $max in the awk script, it just takes filed max.
I do not quite understand how variables are used as paramters in awk.
Any ideas gratefully received.
Thanks
Ken