Shell Programming and Scripting

Hello everyone

I was hoping someone could tell me whether I can use a wildcard inside an tcsh if statement.

I am trying to test the argument the user has fed the script and whether it is a .txt file.

The Ides behind it is the following

Code:

 
if (`echo $1` != *.txt) then
   echo "wrong argument"
else
  echo "You are good"
endif

I know this can be relized using if [[condition]] but it seems like tcsh does not support that kind of a if statement.

your help is alway appreciated.

If you want features not in csh, why not use a different shell?

well the problem is I started scripting about 5 weeks ago and the script I have been working on thus far I have written in tcsh, its a pretty long one. So far I have not had a problem with tcsh.

Now I want to add a few thing to the script and one of them being checking the argument and wheter it in the right format.

It will be really hard to change the whole script to bash or ksh at this point.

Code:

#!/usr/bin/tcsh

set val = `echo $1 | grep ".txt"`
if ( $val != "" )then
  echo "Found"
else
  echo "Not Found"
endif

--ahamed

Thanks Ahamed,

Nice work around, it works.
So I guess the answer is you cant use wildcards with a tcsh if statment.

I am not sure about that... I am not good at tcsh...

--ahamed

you will. The csh is one of the worst shells in existence, with problems that are not bugs but unfixable design flaws. Bill Joy admits he was "not very good at programming" when he invented it.

Use something else, anything else, before your habits become too ingrained to change.