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Full Discussion: Passing external variable to awk
Top Forums Shell Programming and Scripting Passing external variable to awk Post 302774043 by jpkumar10 on Friday 1st of March 2013 05:09:46 AM
Old 03-01-2013
Passing external variable to awk
Hi,

I am trying to write a bash script in which I need to pass a external variable to the awk program. I tired using -v but it not accepting the value.

Here is my sample code.
Code:
#!/usr/bin/bash
######################################################################################
#### This bash script is to form meta
#### To run the script we have to do in the following format ./meta_script.sh frame_no lun_id's no_of_way_meta
###  If you want to create 8 way meta for devics 18DF:18FE on frame 5643 EG: ./meta_script.sh 5643 18DF:18FE 8

ARGS=3
E_WRONGARGS=85

if [ $# -ne "$ARGS" ] # Check for proper number of command-line args.
then
   echo "Usage: `basename $0` frame_no lund_id NO_of_WaY_meta "
   exit $E_WRONGARGS
fi
frame_no=$1;
lun_id=$2
meta_way=$3;

echo "$frame_no, $lun_id, $meta_way "

#if [ $frame_no -ne "\[0-9\]*" ] 
#then
#echo " please enter frame no EG: 1234 "
#exit $E_WRONGARGS
#fi
#if [ $lun_id != "[0-9A-F]*:[0-9A-F]*" ]
#then
#  echo " please enter device in 18DF:18FE format "
#  exit $E_WRONGARGS
#fi

#symaccess -sid $frame_no list assign -devs ${lun_id}|awk '/^[0-9]/ {print $1}'|nawk -v m=$meta_way 'NR%m==1{print " this is the value m";val=$0;print "form meta from dev "$0" config=striped;";next;}{print "add dev "$0" to meta "val";"}' >meta

symaccess -sid $frame_no list assign -devs ${lun_id}|awk '/^[0-9]/ {print $1}'

cat meta |awk '$5~/^[0-9]/ {print "bind tdev "$5" to pool VP_TIER_SATA,preallocate size=aaaa cyl;";}'> binding 

cat binding |awk '{print $3}'|xargs|sed 's/ /,/g'
#

In the above code I am trying to pass the variable 8 which is $meta_way to the awk program but it is not accepting. Let me know if I am doing anything wrong.
Any help is greatly appreciated. Thanks in advance.
 

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APSFILTER-BUG(1)					    BSD General Commands Manual 					  APSFILTER-BUG(1)

NAME

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SYNOPSIS

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OPTIONS

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DESCRIPTION

     With the apsfilter-bug script you can automatically create a bug report for apsfilter(1).	A template report file is created which you can
     edit with your favourite editor ( emacs(1) by default, or whatever is entered in the environment variable EDITOR ).

     You will see a couple of lines starting with '#'; these lines will be removed before the report is sent. So if you want to use the '#' char-
     acter at the beginning of a line, just indent it with a space.

     A very important piece of the bug report is the debugging log created by aps2file(1), probably with a command like
	   aps2file -D -o /dev/null [-P...] [-Z...] [input] 2> log.txt
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NOTES

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     apsfilter version	  7.2.6-stable
     ghostscript version  (from 'gs --version')
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FILES

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SEE ALSO

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BUGS

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DOCUMENTATION

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USER FORUM

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HISTORY

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