12-08-2008
Bash Script Help
Hello, I am very new at Shell Scripting, just begining to learn a little. What I am trying to do is to ping a remote host. If the host is up and accepting pings, I want to connect via telnet. If it is down just end ofcourse. This is what I have so far
#! /bin/bash
echo "Input an IP address to Ping"
read IP
echo "How many times do you want to Ping?"
read Count
echo "Pinging $IP $Count times"
ping $IP -c $Count || { echo "Nobody Home Go Away" >&2; exit; }
rup $IP || { echo "Host is Up" >&2; exit; }
This will ping and report to the user if the remote host is up or down. What I am having trouble doing is going from a good ping to starting the telnet process.
Say I have a good ping. How do I say in script, if ping is good, then start telnet. Do I need to use some kind of varible? Please help.
Thank you very much.
Joe
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KF(1) BSD General Commands Manual KF(1)
NAME
kf -- securely forward tickets
SYNOPSIS
kf [-p port | --port=port] [-l login | --login=login] [-c ccache | --ccache=ccache] [-F | --forwardable] [-G | --no-forwardable]
[-h | --help] [--version] host ...
DESCRIPTION
The kf program forwards tickets to a remote host through an authenticated and encrypted stream. Options supported are:
-p port, --port=port
port to connect to
-l login, --login=login
remote login name
-c ccache, --ccache=ccache
remote cred cache
-F, --forwardable
forward forwardable credentials
-G, --no-forwardable
do not forward forwardable credentials
-h, --help
--version
kf is useful when you do not want to enter your password on a remote host but want to have your tickets one for example AFS.
In order for kf to work you will need to acquire your initial ticket with forwardable flag, i.e. kinit --forwardable.
telnet is able to forward tickets by itself.
SEE ALSO
kinit(1), telnet(1), kfd(8)
Heimdal July 2, 2000 Heimdal