Solved

Expect Script Error with SCP

Posted on 2013-01-23
4
775 Views
Last Modified: 2013-08-29
I need to construct a simple expect script to automate the push of a tar file to a large number of RHEL hosts. Unfortunately, I don't have ssh-key-gen information so I cannot completely automate the scp process. Any attempt to spawn scp from expect generates a scp usage error even when the same values work at command line.

#!/usr/bin/expect
set ipaddress [lindex $argv 0]
set username [lindex $argv 1]
set scpcmd [lindex $argv 2]
set mypass [lindex $argv 3]

#echoing back variables for debug
send "$ipaddress \n"
send "$username \n"
send "$scpcmd \n"
send "$mypass \n"
sleep 2
spawn scp "$scpcmd \n"
expect "*password:"
send "$mypass \n"

Return value:
usage: scp ....
send: spawn id exp4 not open
 while executing
"send "$mypass \n"
 file ....... line 13
0
Comment
Question by:gskortz
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 38

Assisted Solution

by:Gerwin Jansen, EE MVE
Gerwin Jansen, EE MVE earned 500 total points
ID: 38813736
Hi, can you try this:

spawn scp "$scpcmd"
expect "password" { send "$mypass\r" }
(additional commands here)
close $spawn_id
0
 

Author Comment

by:gskortz
ID: 38815307
No difference same error message. Just to make sure it was not an AIX issue I tried the script from RHEL side (Enterprise Server 5.3) and receive the same scp usage error.
0
 
LVL 38

Accepted Solution

by:
Gerwin Jansen, EE MVE earned 500 total points
ID: 38816053
How about if you try first without expect, like this:

scp "$scpcmd"

does that work and are you requested to enter a password? Post the scpcmd if you can.
0
 

Author Closing Comment

by:gskortz
ID: 39450467
None of  the information provided was useful in resolving the issue. We determined use a different solution not based on expect and scp.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A metadevice consists of one or more devices (slices). It can be expanded by adding slices. Then, it can be grown to fill a larger space while the file system is in use. However, not all UNIX file systems (UFS) can be expanded this way. The conca…
Java performance on Solaris - Managing CPUs There are various resource controls in operating system which directly/indirectly influence the performance of application. one of the most important resource controls is "CPU".   In a multithreaded…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
Suggested Courses

737 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question