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I just started programming in Ruby, I would like to know if you can run a command like "Sudo python XXX.py"

I tried to work with RubyPython, but without success because I do not know how and where is the path of the file to be retrieved.

Does anyone have experience with that?

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  • Is there any reason why running the program as root wouldn't work? Commented May 26, 2013 at 7:21
  • It's not good to run programs as 'root'. What OS are you using? Commented Jun 21, 2013 at 13:41

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try using system method from kernel module

http://www.ruby-doc.org/core-2.0/Kernel.html#method-i-system

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thank you very much, a question: can the called program return a value?
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EDIT: try this 

command_output = `sudo python DIRECTORY`
  p command_output

Where DIRECTORY is the full path of the script you want to execute.

There are several methods, each with their own differences.

Check out this blog entry: http://alvinalexander.com/blog/post/ruby/how-execute-external-shell-command-expansion

# define your variable

dir='/tmp'

# execute your shell command

puts `ls #{dir}`

EDIT: Check out this stack overflow question: Running a shell command from Ruby: capturing the output while displaying the output?

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with that method am i able to return a value ?
Try using the new link I added
i don't think is my case i have a python program to read from a DS18B20 the temperature... and i need to launch that program and recive the temp.

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