Shell Programming and Scripting

I need to copy python script file to around 100 servers using expect script.
1. Copy script to my user home first(/home/myhome) on each remote server
2. change permissions on copied file to 766.
3. sudo to appuser1 account on remote server. copy script file from my user home to /usr/bin/ folder.

Code:

#!/bin/bash

REMOTE_IP='30.20.138.25'
SCP_PASSWORD="Rkfasfafsafas"
SCP_REMOTE="myuserid@$REMOTE_IP:/home/myhome"
SCP_FILE=somefile.py

expect -c "
   set timeout 1
   spawn scp $SCP_FILE $SCP_REMOTE
   expect yes/no { send yes\r ; exp_continue }
   expect *assword: { send $SCP_PASSWORD\r }
   expect 100%
   sleep 1

   send "/bin/chmod 766 $SCP_FILE\n"
   expect "$"

   send "/usr/bin/sudo bin/su appUser1"
   expect *assword: { send $SCP_PASSWORD\r }

   send "/usr/bin/cp /home/myhome/$SCP_FILE /usr/bin\r"
   sleep 1
   exit
"

above script is copying file to remote server. send commands are failing.
couldn't read file "766": no such file or directory

How can I get rest of the code after first sleep 1 working? Do I need to initiate another SSH connection? Can I use ssh connection opened for scp and perform other commands?

Note that in your script the 1st argument passed to expect is -c and I have marked the 2nd argument to expect in red. That makes the 3rd argument passed to expect be the string 766 (which appears to be interpreted as a filename by expect thereby producing the diagnostic message you quoted).

If you want to pass quoted strings to commands inside the 2nd argument to expect, you need to escape the inner quotes. Note also that some of the arguments passed to send are quoted and some are not. I would assume that they should be consistently quoted or unquoted; not a mix.