Shell Programming and Scripting

    foreach file ($dir1/*)
        if ($file ~ *.txt) then
            echo "Skipping $file (is a txt file)"
        endif
    end

ls -lrt *.txt | awk '{ print $8 " is txt file" }'

foreach file (`ls`)
  echo $file | grep -q "\.txt"
  if ($status == 0 ) then
    echo "Skipping $file (is a txt file)"
  endif
end

for i in `ls *.txt`; do 
echo "$i is text file";  ## do what ever you need here.. $i is the file name (txt file)
done

foreach file (`ls $dir1/*`)
  echo $file | grep -q "\.txt"
  if ($status == 0 ) then
    echo "Skipping $file (is a txt file)"
  endif
end

#!/bash/csh -f

foreach file ($argv/*)
  
  echo $file |grep -q "\.htm"     
  if($status == 0) then
  ./aa1 $file
  endif
  
end