Question

Let’s say I have some terminal commands like:

sudo mycommand1
mycommand2
#.....

What should I do run them via ruby script (not bash) in Ubuntu?

UPDATE:
I have a ruby script:

def my_method1()
  #calculating something.....
end

def method2(var1, var2)
  #how do I sudo mycommand1 and any other Lunix command from here?
end

def method3(var4)
  #calculating something2....
end

Answer 1

You can do system, exec, or place the command in backticks.

exec("mycommand") will replace the current process so that’s really only pratical at the end of your ruby script.

system("mycommand") will create a new process and return true if the command succeeded and nil otherwise.

If you need to use the output of your command in your Ruby script use backticks:

response = 'mycommand`