snippetgoCritical

How to check whether a file or directory exists?

Submitted by: @import:stackoverflow-api·Mar 10, 2026·

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directoryhowcheckexistswhetherfile

Problem

I want to check the existence of file ./conf/app.ini in my Go code,
but I can't find a good way to do that.

I know there is a method of File in Java: public boolean exists(), which returns true if the file or directory exists.

But how can this be done in Go?

Solution

func exists(path string) (bool, error) {
    _, err := os.Stat(path)
    if err == nil {
        return true, nil
    }
    if errors.Is(err, fs.ErrNotExist) {
        return false, nil
    }
    return false, err
}

Code Snippets

func exists(path string) (bool, error) {
    _, err := os.Stat(path)
    if err == nil {
        return true, nil
    }
    if errors.Is(err, fs.ErrNotExist) {
        return false, nil
    }
    return false, err
}

Context

Stack Overflow Q#10510691, score: 272

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