Create directory where specific files exist in ruby

Question

Using the following two lines I create the file "tmp.txt" in each directory where file_name exist. Than I open the file and write into it an array which I created before:

tmp_file = File.expand_path(File.dirname(file_name)) + "/temp.txt"
File.open(tmp_file, 'w') {|f| f.write array.join("\n")}

How can I create now also a empty directory into the same directories where tmp.txt is created?

I tried something like this:

File.expand_path(File.dirname(file_name)) + FileUtils.mkdir("/NewDirectory")

Answer 1

Create directory path and pass it to FileUtils.mkdir .

BTW, Instead of concatenate using + , use File::join instead:

dirpath = File.expand_path(File.join(File.dirname(file_name), 'NewDirectory'))
FileUtils.mkdir(dirpath)

Answer 2

只需将正确的目录名传递给mkdir即可：

FileUtils.mkdir(File.expand_path(File.dirname(file_name)) + "/NewDirectory")