wowza-expect

wowza.expect

#!/usr/bin/expect -f
set timeout -1
spawn sudo /tmp/WowzaStreamingEngine-4.7.8-linux-x64-installer.run
match_max 100000

expect {
    -exact "Press \[Enter\] to continue:" { send -- "\r"; exp_continue }
    -ex "Do you accept this agreement? \[y/n\]: "
}
send -- "y\r"

expect -exact "License Key: \[\]: "
send -- "KEY\r"

expect -exact "User Name: \[\]: "
send -- "USER\r"

expect -exact "Password: :"
send -- "PASSWORD\r"
expect -exact "Confirm Password: :"
send -- "PASSWORD\r"

expect -exact "Start Wowza Streaming Engine automatically \[Y/n\]: "
send -- "y\r"

expect -exact "Do you want to continue? \[Y/n\]: "
send -- "y\r"
expect eof

If needed, you can use $::env(ENV_VARIABLE_NAME) to fill answers from environment variables