Read binary file as string in Ruby

Question

I need an easy way to take a tar file and convert it into a string (and vice versa). Is there a way to do this in Ruby? My best attempt was this:

file = File         


        

Answer 1

If you can encode the tar file by Base64 (and storing it in a plain text file) you can use

File.open("my_tar.txt").each {|line| puts line}

or

File.new("name_file.txt", "r").each {|line| puts line}

to print each (text) line in the cmd.

Answer 2

First, you should open the file as a binary file. Then you can read the entire file in, in one command.

file = File.open("path-to-file.tar.gz", "rb")
contents = file.read

That will get you the entire file in a string.

After that, you probably want to file.close. If you don’t do that, file won’t be closed until it is garbage-collected, so it would be a slight waste of system resources while it is open.