Passing argument to system call in awk script Post: 302400221

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Top Forums Shell Programming and Scripting Passing argument to system call in awk script Post 302400221 by mikesimone on Tuesday 2nd of March 2010 04:30:53 PM

03-02-2010

Registered User

Passing argument to system call in awk script

So, I have this script. It reads a CSV file that has a mixture of object names with IP addresses (parsing out that part I have working), and object names which have a DNS name. I want to be able to run a "dig +short" based off of the name given to me in the line of the awk script, and then deal with that as it comes. (Ideally, for things where dig returns more than one IP, I'll be able to say object_1 xxx.xxx.xxx.xxx, object_2 xxx.xxx.xxx.yyy, and so forth.)

Code:

#!/bin/bash
cat  $CSV | egrep -v "Network Entity" | awk -F, '
        {for (i=1;i<=NF;i++)
                {if (some conditions) )
                        { Bunch of commands which are working fine}
                          
                else
                      {if (($i == "Network address") && ($(i+1) !~ /[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/))
                          {
                               #print the object name
                               {printf $1 ","};
                               #Use the object data to run dig
                               {print system("dig +short" $(i+1);}

                          }

                      }
                
                }
        }' > $HOSTS_AND_SUBNETS

I'm getting a syntax error. How do I pass an argument to a system call?

Thanks in advance,
Mike

mikesimone

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LEARN ABOUT CENTOS

installsieve

INSTALLSIEVE(1) 					      General Commands Manual						   INSTALLSIEVE(1)

 *

NAME

       installsieve - user utility for managing sieve scripts

SYNOPSIS

       installsieve

DESCRIPTION

       installsieve is a utility that allows users to manage their sieve scripts kept on the server.

OPTIONS

       -v <name> View script with the given name. The script if retrieved sucessfully is output to standard output.

       -l  List  all  of  the scripts currently on the server. If one of the scripts is active a arrow is printed indicating that it is the active
       script.

       -p <port> Port to connect to. If left off this defaults to "sieve" as defined in /etc/services.

       -i <file> Install a file onto the server. If a script with the same name already exists on the server it is overwritten.  Upon  sucessfully
       putting	the  script on the server the script is set active. If <file> has the extension .script it is chopped when put on the server since
       sieve names may not contain a '.'.

       -a <name> Set <name> as the active script. The list of available names can be obtained from the '-l' option..

       -d <name> Delete the sieve script on the server with <name>.

       -m <mechanism> Force installsieve to use <mechanism> for authentication. If not specified the strongest authentication mechanism is chosen.

       -g <name> Get the sieve script with <name> and save it to disk with a ".script" extension. If a file with that name already  exists  it	is
       overwritten.

       -u <user> Userid/Authname to use for authentication; by default, the current user.

CMU
								   Project Cyrus						   INSTALLSIEVE(1)

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