Replacing Go Process with Exec Function

Introduction

This challenge focuses on replacing the current Go process with another process using Go's implementation of the classic exec function.

Skills Graph

Execing Processes

The problem is to replace the current Go process with another process, such as a non-Go process.

Requirements

• Go programming language
• Basic knowledge of Go's exec function
• Familiarity with environment variables

Example

## When we run our program it is replaced by `ls`.
$ go run execing-processes.go
total 16
drwxr-xr-x 4 mark 136B Oct 3 16:29 .
drwxr-xr-x 91 mark 3.0K Oct 3 12:50 ..
-rw-r--r-- 1 mark 1.3K Oct 3 16:28 execing-processes.go

## Note that Go does not offer a classic Unix `fork`
## function. Usually this isn't an issue though, since
## starting goroutines, spawning processes, and exec'ing
## processes covers most use cases for `fork`.

Summary

In this challenge, we learned how to replace the current Go process with another process using Go's implementation of the classic exec function. This can be useful when we need to execute a non-Go process from within a Go program.