if in csh

Shell Programming and Scripting
1

I am using this code

echo "opt_tpath = $opt_tpath"
if ($opt_tpath == 1) echo " -tpath = $Atpath\n"

and is giving

opt_tpath = 0
Atpath: Undefined variable.

Atpath should only be printed in opt_tpath == 1 but it still tries to print.

---------- Post updated at 10:05 AM ---------- Previous update was at 09:53 AM ----------

I think it's because it parses the whole line anyway AND EVALUATES IT!

BUGGER!!!!!!!!

2

That's because of CSH's "parser". See Csh Programming Considered Harmful and Top Ten Reasons not to use the C shell.