===== COMMAND =====: for ns in $(ip netns list); do echo Namespace: ${ns}; ip netns exec ${ns} ip a; done
===== RETURN CODE =====: 0
===== STDOUT =====:
[10.109.25.4] out: Namespace: haproxy
[10.109.25.4] out: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
[10.109.25.4] out:     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[10.109.25.4] out:     inet 127.0.0.1/8 scope host lo
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out:     inet6 ::1/128 scope host 
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out: 18: hapr-ns: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
[10.109.25.4] out:     link/ether 02:6c:7a:fc:e0:fa brd ff:ff:ff:ff:ff:ff
[10.109.25.4] out:     inet 240.0.0.2/30 scope global hapr-ns
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out:     inet6 fe80::6c:7aff:fefc:e0fa/64 scope link 
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out: Namespace: vrouter
[10.109.25.4] out: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
[10.109.25.4] out:     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[10.109.25.4] out:     inet 127.0.0.1/8 scope host lo
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out:     inet6 ::1/128 scope host 
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out: 16: vr-host-ns: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
[10.109.25.4] out:     link/ether b6:1c:68:c7:eb:6b brd ff:ff:ff:ff:ff:ff
[10.109.25.4] out:     inet 240.0.0.6/30 scope global vr-host-ns
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out:     inet6 fe80::b41c:68ff:fec7:eb6b/64 scope link 
[10.109.25.4] out:        valid_lft forever preferred_lft forever
[10.109.25.4] out: 

===== STDERR =====:
