how to run the script without giving the password.

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# 1  
Old 10-06-2009
how to run the script without giving the password.

Hi all,

I need some help in my script...

I need to login into multiple servers from one Unix box and need to login as a superuser account and then I need to perform some actions on the server. For this, i'll use for loop to provide the server names to the script, but for every login as a super user, it is asking user password. so when we are running the script, we are giving the password for every login.
For example, 10 servers are there to login.
To login into the server, it is not asking any passwords, but to login as a super user from the box, it is asking password. So for each box, i am providing the password 10 times.

I dont want to give the password for everytime login, How can I resolve this issue?

can anyone please provide an assistance for the same?

Thanks in advance.

# 2  
Old 10-06-2009
looks like "expect" is the tool you need...
# 3  
Old 10-06-2009
Hi Duke,

Thanks for your reply.

how can i get the "expect" tool? is it free tool?

# 4  
Old 10-06-2009

search on'll get it... its a nice scripting mechanism to automate needs such as yours...
# 5  
Old 10-06-2009
Ok, thank you very much Duke, will search and get it
# 6  
Old 10-06-2009
depending on the distribution you are using, expect is maybe part of your system already. most linux distributions are with expect by default. solaris doesn't have expect by default. i don't know how about aix and othe flavors...
# 7  
Old 10-06-2009
you're logging into the server.. then su'ing to root? perhaps you should just setup nopasswd sudo access to the commands you need as the user you can login to with no passowrd.
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