To make a shell script which can telnet automatically and run commands on the other machine and end the telnet session without any interaction from the user, you need to install EXPECT and TCL packages on your unix system.
If you are done with above mentioned then, you can write a script similar to following (as per your requirements) :
Code:
#!/usr/local/bin/expect -f ####/usr/local/bin/expect is the directory where expect was installed
log_user 0 ####this command is used to hide the conversationn between the script and the other machine
set address [lindex $argv 0] ###assign the first passed parameter while calling the script to $address
set username [lindex $argv 1] ###assign the 2nd passed parameter while calling the script to $username
set password [lindex $argv 2] ###assign the 3rd passed parameter while calling the script to $password
spawn telnet ${address} ###start the telnet session to machine with IP=$address
###start conversation with the machine:
expect "login:"
send -- "${username}\r"
expect "Password:"
send -- "${password}\r"
expect "$ "
send -- "#!/bin/ksh\r" ###declare the shell to be used (optional)
expect "$ "
send -- "###type here any command you want to execute"
expect "$ "
send -- "exit\r" ###end the telnet session and exit the script
to execute this script, you can type:
Code:
$ expect_script "address" "username" "password" ###the script name is "expect_script"
but before u call the expect script, you should make the expect script executable, and this can be done by typing:
Code:
$ chmod +x expect_script
You can also call the above script from any other script....
Hi,
Any scripting experts out there that can point me to the right direction of writing a script using telnet and su to access a server without any users interaction such as login and entering passwd. Thanks.
Thanks in advance
vastare (1 Reply)
Hi All,
I need to stop all the services for telnet & FTP as we want our
server to be more secure.
Please give me some steps for jumping to SSH protocol.
How can i disable telnet & ftp service on my server. (1 Reply)
Hi there,
Can show some hit why i got this error?
For eg i have a.txt in which consist of contents as below
1|781494-0015|IV\|I||C|RECHARGE|Success\|V\|\||2007-12-04 02:33:13.000|
2|762405-0405|IV\|I||C|RECHARGE|Success\|V\|\||2007-12-04 02:33:17.000|
In fact , i want to perfrom to have... (2 Replies)
cat myname.txt
John Doe I
John Doe II
John Doe III
-----------------------------------------------------------------------
for i in `cat myname.txt`
do
echo This is my name: $i >> thi.is.my.name.txt
done
-----------------------------------------------------------------------
cat... (1 Reply)
Team,
we use below command to store the contents in a logfile.
cat a.txt > a.log
a.txt content is
123
345
Is there any options available to store the command used also?
for eg a.log may show as
cat a.txt
123
345 (5 Replies)
Hi Team,
Not getting the file output inside my email which i am sending from unix box. . Please refer the below code :
#!/bin/sh
{
sleep 5
echo ehlo 10.56.185.13
sleep 3
echo mail from: oraairtel@CNDBMUREAPZP02.localdomain
sleep 3
echo rcpt to: saurabhtripathi@anniksystems.com... (1 Reply)
Discussion started by: tripathi1990
1 Replies
LEARN ABOUT SUNOS
telnetrc
telnetrc(4) File Formats telnetrc(4)NAME
telnetrc - file for telnet default options
DESCRIPTION
The .telnetrc file contains commands that are executed when a connection is established on a per-host basis. Each line in the file con-
tains a host name, one or more spaces or tabs, and a telnet(1) command. The host name, DEFAULT, matches all hosts. Lines beginning with the
pound sign (#) are interpreted as comments and therefore ignored. telnet(1) commands are case-insensitive to the contents of the .telnetrc
file.
The .telnetrc file is retrieved from each user's HOME directory.
EXAMPLES
Example 1: A sample file.
In the following example, a .telnetrc file executes the telnet(1) command, toggle:
weirdhost toggle crmod
# Always export $PRINTER
DEFAULT environ export PRINTER
The lines in this file indicate that the toggle argument crmod, whose default value is "off" (or FALSE), should be enabled when connecting
to the system weirdhost. In addition, the value of the environment variable PRINTER should be exported to all systems. In this case, the
DEFAULT keyword is used in place of the host name.
FILES
$HOME/.telnetrc
SEE ALSO telnet(1), in.telnetd(1M), environ(5)SunOS 5.10 9 Jan 1998 telnetrc(4)
05-11-2010
