This execution string executes wc -w using a dropped file as the -load parameter.
EXEC_STRING wc -w %Arg_1%
This example shows a portion of a definition for an action that works only with directory arguments. When a directory is dropped on the action icon, the action displays a list of all the files in the directory with read-write permission.
ACTION List_Writable_Files { ARG_TYPE FOLDER EXEC_STRING /bin/sh -c 's -l %Arg_1% | grep rw-' ... }