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-rw-r--r--dovetail/container.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/dovetail/container.py b/dovetail/container.py
index af05dcd5..87174727 100644
--- a/dovetail/container.py
+++ b/dovetail/container.py
@@ -77,5 +77,7 @@ class Container:
@classmethod
def exec_cmd(cls, container_id, sub_cmd, exit_on_error=False):
+ if sub_cmd == "":
+ return
cmd = 'sudo docker exec %s /bin/bash -c "%s"' % (container_id, sub_cmd)
dt_utils.exec_cmd(cmd, cls.logger, exit_on_error)