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2

Problem using expect variable!

rated 0 times [ 2] [ 0] / answers: 1 / hits: 3445 / 6 Months ago, wed, april 5, 2023, 7:29:01

I am trying to automate my vpn using a shell scipt

What I want is to get a webpage (curl) and parse it for password.
If I write a normal script looks something like:

var=$(curl -i http://www.vpnbook.com/freevpn | grep "Password: <strong>*")

echo ${var:26:8}

This outputs a password.

Now, I want to parse this via expect, store it, and then run the openvpn command:

spawn sudo openvpn --config vpnbook-euro2-tcp443.ovpn

expect "Enter Auth Username:"

send "vpnbook"

expect "Enter Password: "

send $pass

I am unable to set this pass variable properly.

Any Ideas?

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truwom

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3 Years ago

answered 6 Months ago inaterested · Accepted Answer

You can use the environment to store the value, and use expect's env array to retrieve it:

var=$(curl -i http://www.vpnbook.com/freevpn | grep "Password: <strong>*")

export passwd=${var:26:8}

expect -c '

    spawn sudo openvpn --config vpnbook-euro2-tcp443.ovpn

    expect "Enter Auth Username:"

    send "vpnbook"

    expect "Enter Password: "

    send $env(passwd)

    interact

'