Getting the value of a system call

Question

I'm trying to get a value from a system call in Ruby:

distro = system('lsb_release -is')
distver = system('lsb_release -rs | cut  -c1-2')

I thought the return from the lsb_release comes into the variables. But if I'm made a puts distro or puts distver I'm just getting true.

Is there any way to get the value from them?

It has already been asked before lots of times. Here's one answer: http://stackoverflow.com/questions/690151/getting-output-of-system-calls-in-ruby — Yaro Holodiuk, May 12 '15 at 18:40

score 1 · Accepted Answer · answered May 12 '15 at 18:42

1

You can go with

d = `date`
e = IO.popen("date").read

Take some time also with IO.popen, IO.popen2, IO.popen3.

answered May 12 '15 at 18:42

Sebastian

1 Answers1