add interactive mode

vz/run_on_all.sh

 #!/bin/sh
+
+if [ "$1" = "-i" ] ; then
+    shift
+    INTERACTIVE=1
+fi
+
 for id in $(vzlist | sed -e "s| *\([0-9]*\).*|\1|g") ; do
     CONF=/etc/vz/conf/$id.conf
     test -r $CONF || continue
     eval `cat $CONF | grep ^HOSTNAME | sed -e "s|office.etersoft.ru||g"`
     printf "%s (%20s):" $id $HOSTNAME
+
+    if [ -n "$INTERACTIVE" ] ; then
+        echo "run $@? (Y/n)"
+        read n
+        [ -n "$n" ] && [ "$n" != "y" ] && continue
+    fi
     vzctl exec $id "$@"
 done
-