name to each value in
commands between foreach and end.
You can use foreach as a multi-line command
issued at the C-shell prompt (first example below),
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" else echo "Argument is a filename" endif end