How to write bash script that enters password after the first command? [duplicate] - linux

Question

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Closed 10 years ago.
Possible Duplicate:
Using expect to pass a password to ssh
I want to have ssh connection to a remote machine and instead of using ssh command along with the machine address and password, I just want to write a little function that executes the ssh command to the machine and enters the pass after the server asks it. I can write the ssh part but how can I make the script that enters also the pass when the host ask for it?

Answer 1

You may use expect script. You can pass arguments from cmd line. Sample code I write:
#!/usr/bin/expect
set timeout 100
set host [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set command [lindex $argv 3]
spawn ssh $username#$host $command
#puts $command
expect {
"(yes/no)?"
{
send "yes\n"
expect "*assword:" { send "$password\n"}
}
"*assword:"
{
send "$password\n"
}
}

Answer 2

You can use Expect tool
It's exactly what you need:
EDIT
#!/usr/bin/expect
set timeout 60
set user "yourName"
set machine "nameOfYourMachine"
set password "yourPassword"
set command "command that you want execute via ssh"
spawn ssh $user#$machine
while {1} {
expect {
eof {break}
"The authenticity of host" {send "yes\r"}
"password:" {send "$password\r"}
"*\]" {send "exit\r"}
"bash" {send "$command"}
}
}
wait
close $spawn_id
Just workaround it as you need