shar prog.cpp prog.h Makefile | mail pxxxx-x@arioch.unomaha.eduIf the shar command fails, it will output nothing. If that happens you sent an empty e-mail.
shar prog.cpp prog.h Makefile | mail pxxxx-x@arioch.unomaha.edu,userid shar prog.cpp prog.h Makefile | mail pxxxx-x@arioch.unomaha.edu -c userid