I am trying to execute a shell script on a computer I have logged into via ssh using expect.

I use this on my localhost to run expect:
 
#!/bin/bash
HOST=192.168.1.2
USER=”chitti”
PASS=”123″
CMD="./shell_script.sh"

XYZ=$(expect -c “
spawn ssh $USER@$HOST
expect \”password:\”
send \”$PASS\r\”
expect \”\\\\$\”
send \”$CMD\r\”
expect -re \”$USER.*\”
send \”logout\”
“)

echo “$XYZ”

The shell script runs some commands and at the end of the script creates a gzipped archive with the data collected. However, the program is creating the archive before all the commands in the shell script have executed, and I get a an error message when I try to unarchive.

gzip: stdin: unexpected end of file
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now

I only see some of the data that is supposed to be in the archive, after running tar -xvzf archive.tgz
I have tested this shell script extensively outside of expect and it works perfectly. What can I do?