How to capture output from a remote command in Capistrano?
Maybe capture?
"The capture helper will execute the given command on the first matching server, and will return the output of the command as a string."
https://github.com/capistrano/capistrano/wiki/2.x-DSL-Action-Inspection-Capture
If you want to capture the output of multiple hosts, use run with a block: e.g.:
desc "capture output from multiple servers" task :capture_multiple_servers, :roles => [:some_servers] do results = {} run "hostname --fqdn" do |channel, stream, data| if stream == :out results[channel[:host]] = [] unless results.key?(channel[:host]) results[channel[:host]] << data if stream == :out end end puts "Your results were:" results.keys.sort.each do | host | puts "#{host}:#{results[host].join}" end end