lassie% ls add2.c avg3.c hello.c inchtocm.c add2f.c day1 hello2.c junk.ps lassie% cc201 hello.c lassie% ls a.out* add2f.c day1 hello2.c junk.ps add2.c avg3.c hello.c inchtocm.c lassie% a.out Hello world. lassie% lassie% cc hello2.c hello2.c:8: genlib.h: No such file or directory lassie% cc201 hello2.c lassie% a.out Mork says: Hello world. World says: Hello back. lassie%