Rails storing systemcall in variable?

Question

Hi How can I save a system call in a variable?

I want to do something like that:

@info[0] = system "ruby -v".to_s

I edited your question to remove the Rails tags since this seems to only be about Ruby. — Andy Waite, May 11 '15 at 07:59

score 2 · Accepted Answer · edited May 23 '17 at 10:24

2

You can do:

@info = `ruby -v` # or %[ruby -v]
p @info

Take a look into this thread.

edited May 23 '17 at 10:24

Community

answered May 11 '15 at 07:51

Andrey Deineko

score 1 · Answer 2 · answered May 11 '15 at 07:58

1

You can use IO.popen

@info = IO.popen("ruby -v").read
@info
=> "ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]\n"

answered May 11 '15 at 07:58

pangpang

2 Answers2