lassie% ls add2.c ave2f.c greeting.c hello.txt inchtocm.c add2f.c cmtofeet.c hello.c hello2.c lassie% cc201 hello.c cc -I /home/faculty/chang/pub/cs201/xwindows hello.c -L /home/faculty/chang/pub/cs201/xwindows -lcs201x -lX11 -lm lassie% ls a.out* add2f.c cmtofeet.c hello.c hello2.c add2.c ave2f.c greeting.c hello.txt inchtocm.c lassie% a.out Hello, world.