Shell Programming and Scripting

Hi Guys,
I am using c shell script to find whether the file exist or not. I am using if statment to achieve this. I would like to tell the user which file doesn't exist and for this I would need your assistance. Example:

Code:

if (! -e filename1.txt || ! -e filename2.txt || ! -e filename3.txt) then
echo "One of the filename.txt is missing"
endif
 
O/p (let's say  filename2.txt is not that in directory)
One of the filename.txt is missing

Instead of this ouput is there a cool way of telling user precisely which filename is not present. If possible I wouldn't want to change if and endif structure.
Thanks in advance

Code:

$ for i in file1 file2 file3; do [ ! -e "$i.txt" ] && echo $i.txt is missing; done

That's a mistake:

Top Ten Reasons not to use the C shell
Csh problems
Csh Programming Considered Harmful

Using a standard Unix shell:

Code:

for f in filename1.txt filename2.txt filename3.txt
do
  [ -e "$f" ] || printf "%s missing\n" "$f"
done