Thanks for taking a look, this is interesting. Good lesson to always test before posting code no matter how simple you think it is! I'm running on Solaris by the way.

script.sh:

Code:

#!/bin/ksh
echo "first: \c"
read first
echo "Last: \c"
read last
echo "sex: \c"
read sex

echo "You entered: $first $last $sex"

script_silent.sh:

Code:

#!/bin/ksh

script.sh <<EOF
$1
$2
$3
EOF

Output:
$ script_silent.sh Hello Kitty F
stty: : Inappropriate ioctl for device
first: Last: sex: You entered: Hello Kitty F
$

Note: if run using ksh93 (/usr/dt/bin/dtksh on our machine) I do not get the stty error, but the output line is the same.