"Set echo" doesn't seem to show code in tcsh script

Question

Please nothing in the realms of "Why are you using TCSH?". I have my reasons.

I'm trying to debug a tcsh script, but using the options "set echo" and "set verbose" don't actually seem to show the code that I'm trying to debug.

Per this question, I tried "set echo" and "set verbose" in tcsh. I then ran this script 'test.tcsh':

echo "Hello world"
foo=1
bar=2
foobar=$(expr $foo + $bar)
echo $foobar

It returns the following output:

test.tcsh
test.tcsh
Hello world
3
history -S
history -M

So it shows clearly the output of the code. However, what I want to see is the code itself - the echo, the call to expr and so on. In bash, set -xv would do what I want, but it's seemingly not working here.

Anything I'm missing?

Answer 1

To be sure your script is run by the tcsh shell and to get it showing the code, simply add the following line as the first line of your script :

#!/bin/tcsh -v

This will make your script run by tcsh shell and set the tcsh shell to echo each script commands.

For reference, your actual script in the question doesn't seem to be a tcsh script, see comment under your question.

EDIT: To debug without altering the script, you can also simply launch the tcsh shell with the -v parameter followed by the script filename :

$ /bin/tcsh -v test.tcsh