Add a way to show available ressources

This can be done using the -a option.

kvmstats

@@ -30,6 +30,9 @@ do
             usage
         esac
         ;;
+    '-a')
+        SHOW_AVAIL=y
+        ;;
     *)
         usage
     esac
@@ -73,13 +76,19 @@ do
             esac
     done
     RUNNING=$(virsh domstate "$VM" | grep -q '^running$' && echo yes || echo no)
-    echo "$VM $VCPU $RAM $DISK $RUNNING"
+    echo "$VM" "$VCPU" "$RAM" "$DISK" "$RUNNING"
 done >"$TMPFILE"
 
 (
     echo vm vcpu ram disk running
     cat "$TMPFILE"
     awk '{ vcpu += $2; ram += $3; disk += $4; running += length($5) } END { print "TOTAL", vcpu, ram, disk, running }' <"$TMPFILE"
+    if [ $SHOW_AVAIL ]
+    then
+        AV_CPU=$(awk '/^processor/ { cpu++ } END { print cpu }' /proc/cpuinfo)
+        AV_MEM=$(awk '/^MemTotal:/ { print int($2 / 1024 ^ 2) }' /proc/meminfo)
+        echo AVAILABLE "$AV_CPU" "$AV_MEM"
+    fi
 ) | column -t
 
 rm "$TMPFILE" "$LVSOUT"