Golang : Check if a directory exist or not

In this short tutorial, we will learn how to check if a parameter passed as argument is directory or not. It is pretty straight forward by using the os.Stat.IsDir() function


 package main

 import (

 func main() {
 flag.Parse() // get the arguments from command line

 source_dir := flag.Arg(0) // get the source directory from 1st argument

 fmt.Println("Source :" + source_dir)

 // check if the source dir exist
 src, err := os.Stat(source_dir)
 if err != nil {

 // check if the source is indeed a directory or not
 if !src.IsDir() {
 fmt.Println("Source is not a directory")


Hope this will be helpful.

By Adam Ng

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