Rename files in CWD to remove characters forbidden by OneDrive

rename_bad.go

func main() {

	dir := "./"
	bad := "\"*:<>?/\\|"

	files, err := os.ReadDir(dir)
	if err != nil {
		panic(err)
	}

	mapfunc := func (c rune) rune {
		if strings.ContainsRune(bad, c) {
			return '_'
		}
		return c
	}

	c := 1
	for _, file := range files {
		if strings.ContainsAny(file.Name(), "\"*:<>?/\\|") {
			fmt.Println(">", c, file.Name())
			newfn := strings.Map(mapfunc, file.Name())
			fmt.Println("<", c, newfn)
			if err = os.Rename(dir+file.Name(), dir+newfn); err != nil {
				panic(err)
			}
			c++
		}
	}
	fmt.Println(c-1, "Bad filenames")
	
	return
}