From csh script, how to know if logged in as root?

Shell Programming and Scripting
1

I know that when I'm logged in as root in (Solaris or Linux), I would get the # sign at the terminal screen.

But from a csh script, how do I know if I'm running that script logged in as root or not?

2

You could add the following to your script:

echo `whoami`
sleep 5

However, from an administrative point of view, if you are not sure if you are running that script as root, you probably should not be running that script as root.

3

Just guessing - but aren't there any built-in variables and/or commands availably you could query, approximately as follows:

if [ $UID == 0 ]
if [ $USER == 'root' ]
if [ $( whoami ) == "root" ]
4

Test $LOGNAME .