Check if file or directory exists in Golang

check.go

if _, err := os.Stat("/path/to/whatever"); os.IsNotExist(err) {
	// path/to/whatever does not exist
}

if _, err := os.Stat("/path/to/whatever"); !os.IsNotExist(err) {
	// path/to/whatever exists
}

like!

Why not use os.IsExist instead of !os.IsNotExist?

Here is an example to explain the difference, why os.IsExist != !os.IsNotExist:

if _, err := os.Stat("/path/to/whatever"); os.IsExist(err) {
	// never triggers, because err is nil if file actually exists
}

if err := os.Mkdir("/path/to/whatever", 0755); os.IsExist(err) {
	// triggers if dir already exists
}

Is this normal? Have anyone here ever typed this long to just test if a file/dir exists in any other modern language?

Thanks for the solution tho.

@digglife Welcome to this duck up Golang world.

👍

what about if need to check for "*.txt" in Linux dir if the file exists or not, I tried *.txt but it's not working at all

if _, err := os.Stat("*.txt"); err == nil {
fmt.Printf("File exists\n");
} else {
fmt.Printf("File does not exist\n");
}

@ravindrabhargava Please have a look at https://golang.org/pkg/path/filepath/#Glob

super!

Great! It was so helpful! 👍

Thanks 👍

Thanks

that helps~

Thanks

I was here.

Thanks

Thanks!

shanks!

haha, although it is trivial still helps a lot ,thanks!

Thanks