The Buildmeister's cleartools ls command

Builder%  ct ls main.C Makefile ../pkgs/corp/include
main.C@@/main/3                                          Rule: EX001_REL
Makefile@@/main/1                                        Rule: EX001_REL
../pkgs/corp/include/corp_standards.h@@/main/local/1     Rule: PKGS_90 -nocheckout