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Top Forums Shell Programming and Scripting Perl help - how to assign output of perl to variable Post 302774611 by whipuras on Saturday 2nd of March 2013 02:22:44 PM
Old 03-02-2013
Perl help - how to assign output of perl to variable

Hi, guys, i have a script i inherited from a coworker but i'm not perl savy. The script works but i would like it to work better. I want to run this command

./ciscomgrtest.pl -r "show version" -h hosts.router

and have the script goto each router in the hosts.router file and run the command "show version" on telnet.

Right now the script works but i have to put in the "show version" inside a variable inside the actual script like this.

Code:
#!/usr/local/bin/perl
#
#
use Net::Ping;
use Net::Telnet;
use Net::DNS::Resolver;
use Getopt::Std;
use lib '/home/sadmin';
use BER;
use SNMP_Session;


$COMMAND = 'show version';

How can i get that -r switch to put the "show version" from the command line into the variable when run? BTW the -r is arbitray, any switch would work.

hope this makes sense. thanks
 

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control_rancid(1)					      General Commands Manual						 control_rancid(1)

NAME
control_rancid - run rancid for devices of a group SYNOPSIS
control_rancid [-V] [-m mail_rcpt] [-r device_name] group DESCRIPTION
control_rancid is a sh(1) script to parse a group's router.db(5), run rancid for each of the devices, possibly re-run rancid for devices that failed collection, e-mail diffs, and e-mail error reports. The command-line options are as follows: -V Prints package name and version strings. -m mail_rcpt Specify the recipient of diff mail, which is normally rancid-<group>. The argument may be a single address, multiple comma separated addresses, or -m may be specified multiple times. -r device_name Specify the name, as it appears in the router.db, of a particular device to collect and generate diffs for. The device must be marked "up". The -r option alters the subject line of the diff mail. It will begin with <group name>/<device name> rather than just the group name alone. control_rancid is normally (and best) run via rancid-run(1) which provides a locking mechanism on a group basis and saves output in a log file for each group. SEE ALSO
rancid-run(1), rancid.conf(5), router.db(5) 5 October 2006 control_rancid(1)
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