How does exec work in Unix?
How does exec work in Unix? Exec functions are used when you want to execute (launch) a file (program). and how does it work. They work by overwriting the current process image with the one that you launched. They replace (by ending) the currently running process (the one that called the exec command) with the new process that has launched. What is exec system call in OS? In computing, exec is a functionality of an operating system that runs an executable file in the context of an already existing process, replacing the previous executable. This act is also referred to...