Presuming your program really is called "hello.out", and is located in the current directory, you need to specify it as "./hello.out" instead of "hello.out":
$ valgrind ./hello.out
EDIT:...
Type: Posts; User: brewbuck
Presuming your program really is called "hello.out", and is located in the current directory, you need to specify it as "./hello.out" instead of "hello.out":
$ valgrind ./hello.out
EDIT:...