Expect command to switch user

Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Expect command to switch user
# 1  
Old 06-03-2009
Expect command to switch user


I have written a script to switch user and do some operations. I used expect command it doesn't work. It switches the user and waits for the Password to be entered manually. Also, i tried to fetch the pasword from passwd file, it didn't work.The script is as below:

su - ABC
expect "assword:"
send "password of ABC\r"
expect "\]\"
sleep 5
expect closed

Please help.

# 2  
Old 06-03-2009
What does "assword:" stand for?
# 3  
Old 06-03-2009
"assword:" is for "Password:". Use of "assword:" speeds up the execution, i read it somewhere. Well, that worked for me.

# 4  
Old 06-04-2009
No, when you enclose something in quotes, Expects takes it as literal string, instead, you should use wildcard, as in :
expect "*assword" - with case sensitivity in mind
or just 'expect assword:' without the quotes.
This User Gave Thanks to sysgate For This Post:
# 5  
Old 06-04-2009
I might reccomend using the sudo system to run commands as another user instead of keeping a plaintext password in a script file...
This User Gave Thanks to Corona688 For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Expect command to send the user input enter or ctrl+c

Hey All, I am writing one script using expect, that script which is used in spawn will accepts only 1. Enter 2. Ctrl+c Press Control-C to exit, Enter to proceed. Could some one share some thoughts to send the above user inputs in linux expect block ? Thanks, Sam (0 Replies)
Discussion started by: SCHITIMA
0 Replies

2. Shell Programming and Scripting

How to Switch from Local user to root user from a shell script?

Hi, I need to switch from local user to root user in a shell script. I need to make it automated so that it doesn't prompt for the root password. I heard the su command will do that work but it prompt for the password. and also can someone tell me whether su command spawns a new shell or... (1 Reply)
Discussion started by: Little
1 Replies

3. Shell Programming and Scripting

Switch user terminal error

Hello All, Here I am trying to login a Linux machine as admin user from a Solaris box.. & then switch to root user.. Code I use: ssh admin@<IP> << END su - root << A echo "Hello I am logged in as root" exit A exit END But the error I get.. su: must be run from a... (3 Replies)
Discussion started by: ailnilanjan
3 Replies

4. Shell Programming and Scripting

using expect to switch users in a script

hi, I need to switch users in a script I'm newbee to expect I wrote two files 1 sudo.exp, since su4098 is used as root in my laptop #!/usr/bin/expect spawn su su4098 expect *Password:* send mypsw\n interact 2 test.sh ls ./sudo.exp tcpdump -i wlan0 su esolve ls however, in... (1 Reply)
Discussion started by: esolve
1 Replies

5. Shell Programming and Scripting

switch user from local user to root in perl

Hi Gurus, I have a script that requires me to switch from local user to root. Anyone who has an idea on this since when i switch user to root it requires me to input root password. It seems that i need to use expect module here, but i don't know how to create the object for this. ... (1 Reply)
Discussion started by: linuxgeek
1 Replies

6. Shell Programming and Scripting

switch as another user without password

I want to switch as another user without using password .Is it posiible ? I have one server B and I have logged in as username u1 but I want to login to that same server using username as u2 but I don't want to give the password for u2. (3 Replies)
Discussion started by: maitree
3 Replies

7. AIX

Switch user(su) two times

Is it possible to switch to root(if allowed) and then with root privileges switch to another user account "ABC"? To further explain the scenario, ABC is an account which has sugroups=su2DEF and root is not part of su2DEF group. but, given that root can switch to any account(correct me if I am... (7 Replies)
Discussion started by: mtwain
7 Replies

8. Shell Programming and Scripting

Switch to different user without expect

Hi, I have to switch to a different user and execute certain commands and then come back to the original user Ex: My id is 'usstage'. I need to switch to 'apstage', souce a script there, execute a function and then get back again to usstage. Please note that I do not have expect installed... (4 Replies)
Discussion started by: sugan
4 Replies

9. Shell Programming and Scripting

Expect help/interaction with switch..

Hi All, I have been trying to get an Expect program to communicate with a Remote Power Switch which will eventually log in, and then turn on/off certain outlets. For some reason, I can't get through the log in procedure with this Switch. When you first spawn the telnet, you get the Switch... (1 Reply)
Discussion started by: mrjgs70
1 Replies

10. Shell Programming and Scripting

Non-interactive user switch to root

Is is possible switch user from a non-root user to root user without entering the password interactively inside a korn shell script which is run by a non-root user? e.g. I have a non-root user called infodba who is in dba group and I want to create a shell script which is executed by infodba... (5 Replies)
Discussion started by: stevefox
5 Replies
Login or Register to Ask a Question

Featured Tech Videos