ruby - How to print the output on the console? -

I'm trying to display the output of "curl" on the console when I execute it. It prints the declared statement in puts for all hostnames I've written down, which is according to the design.

  desc "check_app_version  ;" checks ap / dev / info page "def check_app_version (environment, project) check_anerirement (Environment) Machine = `knife node list`. Espresso machine.each dot Hostname | Checking the app-version for the "# {Hostname}" system ("curl-syilent-m5 # {hostname}: 8080 / dev / info | grep 'app \ | build'") End End  

But I do not see anything for the next line which instructs me to curl on my server.

Use backtick notation to return a string, then puts Return

  to `curl --silent -m5 # hostname}: 8080 / dev / info | Grep 'application \ | Build '