lib/perus/pinger/metrics/mem.rb in perus-0.1.2 vs lib/perus/pinger/metrics/mem.rb in perus-0.1.3

@@ -2,10 +2,10 @@
     class Mem < Command
         description 'Measures overall RAM usage as a percentage on the client.'
         metric!
 
         def run
-            percent = `cat /proc/meminfo | awk '{if ($1=="MemTotal:") total = $2; if ($1 == "MemFree:") free = $2;} END {print (1 - (free / total))*100}'`
+            percent = shell(%q[cat /proc/meminfo | awk '{if ($1=="MemTotal:") total = $2; if ($1 == "MemFree:") free = $2;} END {print (1 - (free / total))*100}'])
             {mem_all: percent.to_f}
         end
     end
 end