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⚠️ Libfredo 15.4b | Minor release with bugfixes and improvements Update

Find computer uuid

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  • J Offline
    Juantxo
    last edited by 29 Mar 2014, 21:53

    I would like to find motherboard UUID. I almost did, but in Windows SU2014 I must use

    ...force_encoding("utf-16le")...

    I don't know why and the worst, now one SU2014 Windows user is reporting:

    Error: #<ArgumentError: unknown encoding name - utf-16le>

    Someone have an idea about why sometimes not work in Windows, or have a best method to find UUID?

    Code to find UUID:
    MAC OS:
    uuid = %x(ioreg -l | awk '/IOPlatformSerialNumber/ { print }')
    WIN:
    #RUBY_VERSION 1.8
    cmd="wmic csproduct get uuid" uuid = %x(#{cmd})

    #RUBY_VERSION 2.0 (workaround to fix the backquotes bug included):

    cmd="wmic csproduct get uuid" filename = ENV["TMP"].encode("utf-8") + "\\backquote.out" exec_string = "" + cmd + " > " + filename + "" exec_string.gsub! '\\', '/' eval("#{exec_string}") contents = File.read(filename) uuid= contents.force_encoding("utf-16le").encode('UTF-8') uuid.slice!(0)

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    • J Offline
      Juantxo
      last edited by 30 Mar 2014, 08:39

      Thanks to Driven and Dan.
      I will use new notation instead use force_encoding. I think now it should works...

      #UUID in RUBY 2.0 WINDOWS
      ` cmd="wmic csproduct get uuid"
      filename = File.join(ENV["TMP"],"backquote.out")

      exec_string = "`" + cmd + " > " + filename + "`"
      exec_string.gsub! '\\', '/'
      eval("#{exec_string}")
      
      uuid=""
      open(filename, "r:BOM|utf-16le:UTF-8") do |io|
      	uuid = io.read
      end`
      
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