Manubatham, per the awk man page, the variables that you supply with the -v arg, are available in the BEGIN section only:
Quote:
-v var=val
--assign var=val
Assign the value val to the variable var, before execution of
the program begins. Such variable values are available to the
BEGIN block of an AWK program.
Here is how you can use it:
This will produce the output - 1, which is the value of the variable Jan.
i'm trying to do this (in bash darwin);
echo "give me some words: "
read a
c=2 # this is get by other ways
echo $a | awk '{print $c}' # i want to print the column given
# by de $c variable
if there is someone understand what i pretend... (3 Replies)
Hi All,
I have awk script for replacing the nth ocurance of a string in an xml file...
My code is like this
FILETYPE=xml
TAGNAME=type
OCCURANCE=$1
TAGVALUE=valueur
echo OCCURANCE:$OCCURANCE
echo TAGNAME:$TAGNAME
echo TAGVALUE:$TAGVALUE
awk -v n=$OCCURANCE -v... (1 Reply)
I am trying to print the lines with pattern and my pattern is set to a variable express
awk '/$express/{where=NR;print}' test2.log
I am not getting any data even though i have the data with the pattern. Can seomeone correct me with the awk command above? (20 Replies)
Hi Jim,
The following script is in working state. But i m having one more problem with awk cmd. Could you tell me how to use any variable inside awk or how to take any variable value outside awk.
My problem is i want to maintain one property file in which i am declaring variable value into that... (12 Replies)
HI,
This is the code I am using:
awk -v aaa="connect" 'BEGIN {IGNORECASE} /aaa/,/!/ {print NR}' bb
This does not throw any error but it does not work. Pls help
Thanks. (4 Replies)
Hello experts,
I'm stuck with this script for three days now. Here's what i need.
I need to split a large delimited (,) file into 2 files based on the value present in the last field.
Samp: Something.csv
bca,adc,asdf,123,12C
bca,adc,asdf,123,13C
def,adc,asdf,123,12A
I need this split... (6 Replies)
Hi,
Was hoping someone could help with the following:
while read line; do pntadm -P $line | awk '{if (( $2 == 00 && $1 != 00 ) || ( $2 == 04 )) print $3,$5}'; done < /tmp/subnet_list
Anyone know if it is possible to assign $3 and $5 to separate variables within the {} brackets?
Thanks... (14 Replies)
Thanks all for taking time out and reading this thread and big Thanks to all who have come forward for rescue.
Background: I have a variable "nbrofcols" that has number of columns from a data file. Now, using this count in for loop, I am trying to get the maximum length of each column present... (7 Replies)
Discussion started by: svks1985
7 Replies
LEARN ABOUT DEBIAN
dpkg-awk
DPKG-AWK(1) General Commands Manual DPKG-AWK(1)NAME
dpkg-awk - Utility to read a dpkg style db file
SYNOPSIS
dpkg-awk [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ... -- <out_fieldname> ..
DESCRIPTION
dpkg-awk Parses a dpkg status file (or other similarly formatted file) and outputs the resulting records. It can use regex on the field
values to limit the returned records, it can also be told which fields to output, and 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 output for each record. If the first field listed begins with ^, then the list of fields that
follows will NOT be output.
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 your
own.
This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg.
AUTHOR
Adam Heath <doogie@debian.org>
DEBIAN Debian Utilities DPKG-AWK(1)