foreach name ( wordlist ) commands end
Assign variable name to each value in wordlist and execute commands between foreach and end. You can use foreach as a multiline command issued at the shell prompt (first of the following examples), or you can use it in a shell script (second example).
Rename all files that begin with a capital letter:
foreach i ([A-Z]*)?
mv $i $i.new?
Check whether each command-line argument is an option or not:
foreach arg ($argv)
# does it begin with - ?
if ("$arg" =~ -*) then
echo "Argument is an option"
echo "Argument is a filename"