ShellCheck - shell script analysis tool
version: 0.11.0
license: GNU General Public License, version 3
website: https://www.shellcheck.net
Redirect to /tmp/tmp.pqVW8pomkN and /tmp/tmp.fmjqVn0xvZ
Tree base:
37a93dd5c49b ("Merge tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next")
Now at:
eda85b8fd6dc ("selftests/net: add test for IP-in-IPv6 tunneling")
 ====== Checking before the patch ======
 ====== Checking the tree with the patch ======
Checking tools/testing/selftests/net/ip6_tunnel.sh - bcdcea0e66cf64bbb9394f0d19faf7e337bbe286e0ef49a428c6b7a90a11311e


In ip6_tunnel.sh line 11:
  ip link set transport1 netns $ns1
                               ^--^ SC2154 (warning): ns1 is referenced but not assigned.
                               ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip link set transport1 netns "$ns1"


In ip6_tunnel.sh line 12:
  ip -n $ns1 address add 2001:db8::1/64 dev transport1 nodad
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" address add 2001:db8::1/64 dev transport1 nodad


In ip6_tunnel.sh line 13:
  ip -n $ns1 address add 2001:db8::3/64 dev transport1 nodad
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" address add 2001:db8::3/64 dev transport1 nodad


In ip6_tunnel.sh line 14:
  ip -n $ns1 link set transport1 up
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" link set transport1 up


In ip6_tunnel.sh line 15:
  ip -n $ns1 link add link transport1 name tunnel4 type ip6tnl mode ipip6 local 2001:db8::1 remote 2001:db8::2
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" link add link transport1 name tunnel4 type ip6tnl mode ipip6 local 2001:db8::1 remote 2001:db8::2


In ip6_tunnel.sh line 16:
  ip -n $ns1 address add 172.0.0.1/32 peer 172.0.0.2/32 dev tunnel4
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" address add 172.0.0.1/32 peer 172.0.0.2/32 dev tunnel4


In ip6_tunnel.sh line 17:
  ip -n $ns1 link set tunnel4 up
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" link set tunnel4 up


In ip6_tunnel.sh line 18:
  ip -n $ns1 link add link transport1 name tunnel6 type ip6tnl mode ip6ip6 local 2001:db8::3 remote 2001:db8::4
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" link add link transport1 name tunnel6 type ip6tnl mode ip6ip6 local 2001:db8::3 remote 2001:db8::4


In ip6_tunnel.sh line 19:
  ip -n $ns1 address add 2001:db8:6::1/64 dev tunnel6
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" address add 2001:db8:6::1/64 dev tunnel6


In ip6_tunnel.sh line 20:
  ip -n $ns1 link set tunnel6 up
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns1" link set tunnel6 up


In ip6_tunnel.sh line 23:
  ip link set transport2 netns $ns2
                               ^--^ SC2154 (warning): ns2 is referenced but not assigned.
                               ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip link set transport2 netns "$ns2"


In ip6_tunnel.sh line 24:
  ip -n $ns2 address add 2001:db8::2/64 dev transport2 nodad
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" address add 2001:db8::2/64 dev transport2 nodad


In ip6_tunnel.sh line 25:
  ip -n $ns2 address add 2001:db8::4/64 dev transport2 nodad
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" address add 2001:db8::4/64 dev transport2 nodad


In ip6_tunnel.sh line 26:
  ip -n $ns2 link set transport2 up
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" link set transport2 up


In ip6_tunnel.sh line 27:
  ip -n $ns2 link add link transport2 name tunnel4 type ip6tnl mode ipip6 local 2001:db8::2 remote 2001:db8::1
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" link add link transport2 name tunnel4 type ip6tnl mode ipip6 local 2001:db8::2 remote 2001:db8::1


In ip6_tunnel.sh line 28:
  ip -n $ns2 address add 172.0.0.2/32 peer 172.0.0.1/32 dev tunnel4
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" address add 172.0.0.2/32 peer 172.0.0.1/32 dev tunnel4


In ip6_tunnel.sh line 29:
  ip -n $ns2 link set tunnel4 up
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" link set tunnel4 up


In ip6_tunnel.sh line 30:
  ip -n $ns2 link add link transport2 name tunnel6 type ip6tnl mode ip6ip6 local 2001:db8::4 remote 2001:db8::3
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" link add link transport2 name tunnel6 type ip6tnl mode ip6ip6 local 2001:db8::4 remote 2001:db8::3


In ip6_tunnel.sh line 31:
  ip -n $ns2 address add 2001:db8:6::2/64 dev tunnel6
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" address add 2001:db8:6::2/64 dev tunnel6


In ip6_tunnel.sh line 32:
  ip -n $ns2 link set tunnel6 up
        ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
  ip -n "$ns2" link set tunnel6 up


In ip6_tunnel.sh line 43:
ip netns exec $ns1 ping -q -W1 -c1 172.0.0.2 >/dev/null
              ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
ip netns exec "$ns1" ping -q -W1 -c1 172.0.0.2 >/dev/null


In ip6_tunnel.sh line 44:
ip netns exec $ns1 ping -q -W1 -c1 2001:db8:6::2 >/dev/null
              ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
ip netns exec "$ns1" ping -q -W1 -c1 2001:db8:6::2 >/dev/null

For more information:
  https://www.shellcheck.net/wiki/SC2154 -- ns1 is referenced but not assigned.
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...