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POHow to send a password with a $ symbol in Expect Script
 

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  1. POHow to send a password with a $ symbol in Expect Script
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    <p>I have an expect script that I need to login to a remote system and execute commands. This script works with the exception of providing the password to the root account. The root password contains a dollar sign that I cannot seem to get to work. Here is the code</p> <pre><code>#!/usr/bin/expect set timeout 3 set username "root" set password "Pas$word" set hostname [lindex $argv 0] log_user 0 send_user "\n#####\n# $hostname\n#####\n" spawn ssh -q -o StrictHostKeyChecking=no $username@$hostname expect { timeout { send_user "\nFailed to get password prompt\n"; exit 1 } eof { send_user "\nSSH failure for $hostname\n"; exit 1 } "*assword" } send "$password\r" expect { timeout { send_user "\nLogin failed. Password incorrect.\n"; exit 1} "*\$ " } send_user "\nPassword is correct\n" expect "$ " { send "ls" } </code></pre> <p>I have verified this works when providing credentials whose passwords don't contain the dollar sign, but I can't get it to work with the root account. It always produces the <code>Login failed. Password incorrect</code> timeout error. Changing the password is not an option. I have tried to supply the <code>\</code> escape character in the password definition like so:</p> <pre><code>set password "Pas\$word" </code></pre> <p>And I get the same results... any ideas on what I'm doing wrong?</p> <p>Thanks</p> <p><strong>EDIT</strong> As I said. I already tried to escape the $ character. But to clarify, I added a print statement for the password when the script starts up to verify the variable contains the password correctly... Here is the change:</p> <pre><code>set password "Pas\$word" ... send_user "\n#####\n# $hostname\n#####\n" send_user "Using password: $password\n" ... </code></pre> <p>Here is the console output:</p> <pre><code>njozwiak@ubuntu:~$ ./ssh_ls.sh 192.168.5.93 ##### # 192.168.5.93 ##### Using password: Pas$word Login failed. Password incorrect. </code></pre>
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