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-rw-r--r--python/vyos/ifconfig/control.py13
1 files changed, 7 insertions, 6 deletions
diff --git a/python/vyos/ifconfig/control.py b/python/vyos/ifconfig/control.py
index c8568ac96..635b626e8 100644
--- a/python/vyos/ifconfig/control.py
+++ b/python/vyos/ifconfig/control.py
@@ -29,12 +29,13 @@ class Control:
def _cmd(self, command):
p = Popen(command, stdout=PIPE, stderr=STDOUT, shell=True)
tmp = p.communicate()[0].strip()
- self._debug_msg("cmd '{}'".format(command))
- if tmp.decode():
- self._debug_msg("returned:\n{}".format(tmp.decode()))
-
- # do we need some error checking code here?
- return tmp.decode()
+ self._debug_msg(f"cmd '{command}'")
+ decoded = tmp.decode()
+ if decoded:
+ self._debug_msg(f"returned:\n{decoded}")
+ if p.returncode != 0:
+ raise RuntimeError(f'{command}\nreturned: {decoded}')
+ return decoded
def _get_command(self, config, name):
"""