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Full Discussion: Perl telnet to cisco router and compare the ping ms
Top Forums Shell Programming and Scripting Perl telnet to cisco router and compare the ping ms Post 302133560 by robotronic on Friday 24th of August 2007 02:51:53 AM
Old 08-24-2007
Populate the MSG variable with the text you want or substitute the echo command with the output of telnet (through pipe) and then:

Code:
echo "$MSG" | awk -F= '
   /round-trip/ {
      split($2, a, "/");
      avg=a[2];
      if (avg > 180) {
         print("Alarm! ("avg")");
      } else {
         print("Ping OK. ("avg")");
      }
   flag=1;
   exit;
   }
   END {
      if (! flag) {
         print("Cannot ping!");
      }
   }
'

or, continuing with the shell way:

Code:
AVG=`echo "$MSG" | grep "round-trip" | cut -f2 -d= | cut -f2 -d/`
 
if [ ! "$AVG" ] 
then 
   echo "Cannot ping!" 
elif [ "$AVG" -gt 180 ]
then   
   echo "Alarm! ($AVG)" 
else
   echo "Ping OK. ($AVG)" 
fi

 

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LEARN ABOUT DEBIAN

rxtelnet

RXTELNET(1)						    BSD General Commands Manual 					       RXTELNET(1)

NAME

     rxtelnet -- start a telnet and forward X-connections.

SYNOPSIS

     rxtelnet [-l username] [-k] [-t telnet_args] [-x xterm_args] [-K kx_args] [-w term_emulator] [-b telnet_program] [-n] [-v] host [port]

DESCRIPTION

     The rxtelnet program starts an xterm window with a telnet to host host.  From this window you will also be able to run X clients that will be
     able to connect securely to your X server. If port is given, that port will be used instead of the default.

     If setting up the X forwarding failes, rxtelnet will still telnet in to the remote host, but without X forwarding.

     The supported options are:

     -l      Log in on the remote host as user username.

     -k      Disables keep-alives.

     -t      Send telnet_args as arguments to telnet.

     -x      Send xterm_args as arguments to xterm.

     -X      Send kx_args as arguments to kx.

     -w      Use term_emulator instead of xterm.

     -b      Use telnet_program instead of telnet.

     -n      Do not start any terminal emulator.

     -v      Be verbose.

EXAMPLE

     To login from host foo (where your display is) to host bar, you might do the following.

     1.   On foo: rxtelnet bar

     2.   You will get a new window with a telnet to bar.  In this window you will be able to start X clients.

SEE ALSO

     kx(1), rxterm(1), telnet(1), tenletxr(1), kxd(8)

KTH_KRB 							   March 7, 2004							   KTH_KRB
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