Passing a parameter to an 'Expect' script

Question

Hi,
Does anyone know how to pass a parameter from a regular Linux shell script to an expect script.
I'm using the standard $1 but the expect script gives me an error.
How does Expect want us to pass parameters to it?
My call to the script and the script are below.
expect -f /home/fhs_clientdata/ftpget/fhs_ftpput_exehfc_expect.sh $FILE_NAME_SOURCEthe Expect script:
spawn sftp [email protected]
set PASSWORD "AbCd46%Z"
expect "password:"
send "$PASSWORD\n"
expect "sftp>" {
          send "cd inbound\n"
          expect "sftp>"
          send "put $1\n"
          expect "sftp>"
          send "bye\n"
          send_user "Done\n"
          exit
       } "Permission denied, please try again." {
          send_user "There was error with th permissions"
          exit
       }

Answer 1

You may need to read the input parameters first, e.g.:
set file [lindex $argv 0]
Then: send "put $file\r"
There is a good example at http://en.wikipedia.org/wiki/Expect