title: Problems with sudo inside expect script
body: <p>I am running the following script </p>
  
  <pre><code>#!/usr/bin/expect -f
  
  set user [lindex $argv 0]
  set pass [lindex $argv 1]
  set PATH [lindex $argv 2]
  set INV_PATH [lindex $argv 3]
  
  spawn ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no $user@localhost
  
  expect "assword: "
  send "$pass\r"
  expect "$ "
  send "echo $pass | /usr/local/bin/sudo -S $INV_PATH/orainstRoot.sh\r"
  
  expect "$ "
  send "cd $PATH/bin\r"
  
  expect "$ "
  send "echo $pass | /usr/local/bin/sudo -S cp oraenv coraenv sqlplus dbhome /usr/bin\r"
  
  expect "$ "
  send "echo $pass | /usr/local/bin/sudo -S $PATH/root.sh\r"
  
  expect "Check"
  send "\r"
  </code></pre>
  
  <p>Its <strong>working fine in some machines</strong> and for some machines its throwing the following error... I have checked, its not the PATH causing the issue.</p>
  
  <pre><code>/usr/local/bin/sudo: /scratch/prod_sw/app/oraInventory/orainstRoot.sh: command not found
  $ echo PASSWD | /usr/local/bin/sudo -S cd /scratch/prod_sw/app/prod_sw/product/11.2.0/db_home/bin
  /usr/local/bin/sudo: cd: command not found
  $ echo PASSWD | /usr/local/bin/sudo -S cp oraenv coraenv sqlplus dbhome /usr/bin
  cp: cannot stat `oraenv': No such file or directory
  cp: cannot stat `coraenv': No such file or directory
  cp: cannot stat `sqlplus': No such file or directory
  cp: cannot stat `dbhome': No such file or directory
  $ echo PASSWD | /usr/local/bin/sudo -S /scratch/prod_sw/app/prod_sw/product/11.2.0/db_home//root.sh
  Check /scratch/prod_sw/app/prod_sw/product/11.2.0/db_home/install/root_slcad22rhu_2013-07-22_04-41-49.log for the output of root script
  </code></pre>