03-17-2008
Got some unexpected answer below:
$ nawk -v k="ora_qmn0_sid" '$0 ~ k' sample.txt
28321 65548 1 59 0 569M 533M sleep 0:00 0 0.00% 0.00% 0.00% 0.00% usr mc_off ora_qmn0_sid
$ awk -v k="ora_qmn0_sid" '$0 ~ k' sample.txt
awk: syntax error near line 1
awk: bailing out near line 1
$ awk -v k="ora_qmn0_sid" '$0 ~/"'$k'"/' sample.txt
awk: syntax error near line 1
awk: bailing out near line 1
Seems that the "-v" option does not work on solaris 9&10. I also try above "awk -v" command on a linux box, and it works fine......a little bit weird to me.
but another issue i met is that '$0 ~ k' works but $0 ~/"'$k'"/ not
{
fieldname=""
key="ora_.*_sid"
# if (fieldname ~ /"'$k'"/) {
if (fieldname ~ key) {
printf("%s\n", fieldname);
}
}
The commented line won't work as the one below it. Does anyone know the reason?
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LEARN ABOUT DEBIAN
dpkg-ruby
DPKG-RUBY(1) General Commands Manual DPKG-RUBY(1)
NAME
dpkg-ruby - Utility to read a dpkg style db file, dpkg-awk clone
SYNOPSIS
dpkg-ruby [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-n|--numeric) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ...
-- <out_fieldname> ..
DESCRIPTION
dpkg-ruby Parses a dpkg status file(or other similarly formated file) and outputs the resulting records. It can use regex on the field
values to limit the returned records, and it can also be told which fields to output. As another option, it can sort the matched fields.
OPTIONS
-f filename
--file filename
The file to parse. The default is /var/lib/dpkg/status.
-d [#]
--debug [#]
Each time this is specified, it increased the debug level.
-s field(s)
--sort field(s)
A space or comma separated list of fields to sort on.
-n field(s)
--numeric field(s)
A space or comma separated list of fields that should be interpreted as numeric in value.
-rs ??
--rec_sep ??
Output this string at the end of each output paragraph.
-h
--help Display some help.
fieldname
The fields from the file, that are matched with the regex given. The fieldnames are case insensitive.
out_fieldname
The fields from the file, that are outputted for each record. If the first field listed is begins with ^, then the list that fol-
lows are fields NOT to be outputted.
BUGS
Be warned that the author has only a shallow understanding of the dpkg packaging system, so there are probably tons of bugs in this pro-
gram.
This program comes with no warranties. If running this program causes fire and brimstone to rain down upon the earth, you will be on our
own.
This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg.
AUTHOR
Fumitoshi UKAI <ukai@debian.or.jp>. This manual page are based on (or almost copy from :) dpkg-awk(1) manual written by Adam Heath <doo-
gie@debian.org>
DEBIAN
Debian Utilities DPKG-RUBY(1)