[PATCH 3/4] scripts: Add option to store QEMU pid

[Alexander Smirnov <asmirnov@ilbers.de>]

Add possibility to store QEMU pid to file for further usage.

Signed-off-by: Alexander Smirnov <asmirnov@ilbers.de>
---
 scripts/start_vm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scripts/start_vm b/scripts/start_vm
index 444512b..400484a 100755
--- a/scripts/start_vm
+++ b/scripts/start_vm
@@ -61,6 +61,7 @@ show_help() {
     echo "                          Supported: jessie, stretch."
     echo "    -o, --out FILE        Route QEMU console output to"
     echo "                          specified file."
+    echo "    -p, --pid FILE        Store QEMU pid to file."
     echo "    --help                display this message and exit."
     echo
     echo "Exit status:"
@@ -99,6 +100,10 @@ do
         EXTRA_ARGS="$EXTRA_ARGS -serial file:$2"
         shift
         ;;
+    -p|--pid)
+        EXTRA_ARGS="$EXTRA_ARGS -pidfile $2"
+        shift
+        ;;
     *)
         echo "error: invalid parameter '$key', please try '--help' to get list of supported parameters"
         exit $ES_BUG
-- 
2.1.4