I have a script that prompts the user for their sudo password, and then iterates through a list of hosts and performs commands on remote hosts. I can 'read -s' to get their password silently, but each time their password is used on a remote host, it's echoed back to the terminal. Changing stty on the local host doesn't help. Example:

```
#!/bin/sh -x

echo "Enter sudo pass:"
read -s SUDOPASS

stty_orig=$(stty -g)
stty -echo
ssh -tt remote_host sudo cat /etc/cma.conf <<EOP
$SUDOPASS
EOP
stty $stty_orig

```

The output still includes the password:

```
+ ssh -tt remote_host sudo cat /etc/cma.conf
My_P4ssW0rd!
Password:
<?xml version="1.0" encoding="UTF-8"?>
...

```

It also doesn't help to play with stty on the remote host:

```
stty_orig=$(ssh -t remote_host stty -g)
ssh -t remote_host stty -echo
ssh -tt remote_host sudo cat /etc/cma.conf <<EOP
$SUDOPASS
EOP
ssh -t remote_host stty $stty_orig

```

FWIW, I'm mainly concerned with OSX bash/sh