Here's a very basic way using Expect that should hopefully set you on the path to what you want to accomplish:
Code:
#!/usr/bin/expect -f
#
#
# set credentials - NOT RECOMMENDED METHOD
set u "username"
set p "password"
# get host name from command-line
set h [lindex $argv 0]
# set the command to run
set cmd "date"
# spawn a connection to the host and
# run the given command
spawn ssh -t $u@$h $cmd
# handle the password prompt
expect "?assword:*"
send -- "$p\r"
send -- "\r"
# done
expect eof
I've found reading files using Expect to be a bit flaky, so you could use a while loop to parse your file with the hostnames and feed it to the Expect script like so:
while read hosts;do sendCmd $hosts;done < server_list
Output:
spawn ssh -t username@server1 date
username's Password:
Mon Nov 11 08:52:42 EST 2013
Connection to server1 closed.
75d6b64809eec8e415f7bca6b09b6f40
Last edited by in2nix4life; 11-12-2013 at 01:50 PM..
hi friends,
i m tryin to load data from one set of table to other i have sql procedure al ready for it..!
i m going to load the procedure only if data in one of my table for example
table "landing " have 10 records each attribute of this table is
file_name status date ... (2 Replies)
Hello All,
I am a newbie in Shell script programming, and maybe you can help me with my query.
I need to write a shell script (mntServer.ksh) that will start a background process and also to be able to run another script.
The mntServer.ksh script contains:
#!/bin/ksh... (1 Reply)
Hi,
I am trying to use "Expect" in shell script to ssh and do some work in remote server but I am unable to connect. Here is the code I am using.
#save as test.sh
set ip "10.10.10.10"
set username "uname"
set password "upass"
spawn ssh $username@$ip
expect "Password:"
send... (8 Replies)
Hi
I'm trying to run a script " abc.sh" which triggers "use.sh" .
abc.sh is nothing but a "expect" script which provides username and password automatically to the use.sh script.
Please find below the scripts:
#abc.sh
#!/usr/bin/expect -f
exec /root/use.sh
expect "*name*"
send... (1 Reply)
I need a shell script using expect to login to couple of remote servers and read "crontab -l -u <username>" & "cat /etc/rc.local" & "df -h" and able to create output into a file saved locally with hostname.crontab & hostname.rc.local & disk.status. I can supply a file as list of hostname or IP... (4 Replies)
Friends,
Need someone's help in helping me with the below requirement for a script:
> For a list of servers(over 100+), I need to login into each of them(cannot configure password-less ssh) & grab few configuration details <
I know, this is possible through expect programming in a simple... (2 Replies)
Hi,
I need to run a test script to check all test accounts, is it possible to pass the password to su in following command? I've got following error:
$ echo "${password}" | su ${test_account} -c "check_account.sh"
standard in must be a tty
Thank you.
- j (3 Replies)
Ladies & Gents,
Can one of you gurus please show me a very simple "expect" script to change the password in Solaris in a script, please? Nothing fancy, no error checking, no nothing. Just to change the password of a new user, it's all.
Many thanks in advance. U guys have honestly earned my... (1 Reply)
Hi All,
i am trying to ssh to a remote machine and execute certain command to remote machine through script.
i am able to ssh but after its getting hung at the promt and after pressing ctrl +d i am gettin the out put as
expect: spawn id exp5 not open
while executing
"expect "$" {... (3 Replies)
Discussion started by: Siddharth shivh
3 Replies
LEARN ABOUT CENTOS
passmass
PASSMASS(1) General Commands Manual PASSMASS(1)NAME
passmass - change password on multiple machines
SYNOPSIS
passmass [ host1 host2 host3 ... ]
INTRODUCTION
Passmass changes a password on multiple machines. If you have accounts on several machines that do not share password databases, Passmass
can help you keep them all in sync. This, in turn, will make it easier to change them more frequently.
When Passmass runs, it asks you for the old and new passwords. (If you are changing root passwords and have equivalencing, the old pass-
word is not used and may be omitted.)
Passmass understands the "usual" conventions. Additional arguments may be used for tuning. They affect all hosts which follow until
another argument overrides it. For example, if you are known as "libes" on host1 and host2, but "don" on host3, you would say:
passmass host1 host2 -user don host3
Arguments are:
-user
User whose password will be changed. By default, the current user is used.
-rlogin
Use rlogin to access host. (default)
-slogin
Use slogin to access host.
-ssh
Use ssh to access host.
-telnet
Use telnet to access host.
-program
Next argument is a program to run to set the password. Default is "passwd". Other common choices are "yppasswd" and "set
passwd" (e.g., VMS hosts). A program name such as "password fred" can be used to create entries for new accounts (when run as
root).
-prompt
Next argument is a prompt suffix pattern. This allows the script to know when the shell is prompting. The default is "# " for
root and "% " for non-root accounts.
-timeout
Next argument is the number of seconds to wait for responses. Default is 30 but some systems can be much slower logging in.
-su
Next argument is 1 or 0. If 1, you are additionally prompted for a root password which is used to su after logging in. root's
password is changed rather than the user's. This is useful for hosts which do not allow root to log in.
HOW TO USE
The best way to run Passmass is to put the command in a one-line shell script or alias. Whenever you get a new account on a new machine,
add the appropriate arguments to the command. Then run it whenever you want to change your passwords on all the hosts.
CAVEATS
Using the same password on multiple hosts carries risks. In particular, if the password can be stolen, then all of your accounts are at
risk. Thus, you should not use Passmass in situations where your password is visible, such as across a network which hackers are known to
eavesdrop.
On the other hand, if you have enough accounts with different passwords, you may end up writing them down somewhere - and that can be a
security problem. Funny story: my college roommate had an 11"x13" piece of paper on which he had listed accounts and passwords all across
the Internet. This was several years worth of careful work and he carried it with him everywhere he went. Well one day, he forgot to
remove it from his jeans, and we found a perfectly blank sheet of paper when we took out the wash the following day!
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
7 October 1993 PASSMASS(1)