Assignment for Attributes in external Scripts

["niall el-assaad" <niallel@gmail.com>]

Hi,

I am writing an external script to be run based upon an authentication.

When the script returns output I am unsure as to what the assignment operators do,

for example when should I use += vs := vs =

If I look at the exec-program-wait sample script I see:

echo "Reply-Message += \"Hello, %u\","

echo "Reply-Message += \"PATH=$PATH\","

echo Framed-IP-Address = 255.255.255.255

Is this documented anywhere?

thanks,

niall