Is there an environment variable in csh to modify PS2?

Question

Is there an environment variable in CSH to change the PS2 like in bash and sh?

For example:

$PS2 = "hi"

I tried it but it doesn't work in csh.

Answer 1

I'm going to assume you're using tcsh, which has prompt2 (not available in the original csh, AFAIK almost all of all versions of csh are tcsh these days).

From the manpage, section "Special shell variables":

prompt2 (+)
The string with which to prompt in while and foreach loops and after lines ending in \'. The same format sequences may be used as in prompt (q.v.); note the variable meaning of%R'. Set by default to `%R? ' in interactive shells.

It's not an environment variable, you can just use set:

% set prompt2 = 'x> '
% while 1
x>