running compiled c++ programs in Fedora
 

Whenever I compile my programs and finally get no errors I see the a.out file and when I type a.out I get this error message:
-bash: a.out: command not found
WHY?

To execute a compiled file from a bash prompt you need to use the command

./a.out

linux only uses the path environment to search for commands.

./ is a shortcut for the current working directory.