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.tF8QVUtm17 and /tmp/tmp.xRxuCmed1X
Tree base:
bb77ff86ea7e ("netfilter: nft_set_pipapo: fix range overlap detection")
Now at:
a7c6180c91e6 ("selftests: netfilter: nft_concat_range.sh: add check for overlap detection bug")
 ====== Checking before the patch ======
Checking tools/testing/selftests/net/netfilter/nft_concat_range.sh - 9af70c1607bb45389b2152f3d374bb2b870aa13f5390f3ff007123fa4497b76a


In nft_concat_range.sh line 523:
	B() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 548:
	send_icmp() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 556:
		send_icmp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 562:
		send_icmp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 573:
		send_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 587:
		send_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 605:
		send_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 627:
		send_udp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 647:
		send_udp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 666:
		send_udp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 687:
		flood_tcp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 716:
		flood_tcp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 745:
		flood_tcp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 781:
		flood_tcp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 810:
		flood_tcp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 839:
		flood_tcp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 875:
		flood_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 904:
		flood_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 933:
		flood_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 973:
	perf_ipv4() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 980:
	perf_ipv6() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 1389:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1396:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1412:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1419:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1425:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1433:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1440:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1448:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1454:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1461:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1467:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1476:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1484:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1493:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1503:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1832:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
                                                                       ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                 ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " "${i}" "${j}" "${dport}" "$((dport+1))")


In nft_concat_range.sh line 1835:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "before add" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d1" $((dport+1))) "before add" || return 1


In nft_concat_range.sh line 1839:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "after add" || return 1
                                                 ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                       ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                              ^-------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                                            ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d" "$dport") "after add" || return 1


In nft_concat_range.sh line 1842:
			if [ $? -ne 0 ];then
                             ^-- SC2181 (style): Check exit code directly with e.g. 'if ! mycmd;', not indirectly with $?.


In nft_concat_range.sh line 1843:
				local got=$(nft "get element inet filter test { $elem }")
                                      ^-^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In nft_concat_range.sh line 1848:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "out-of-range" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d1" $((dport+1))) "out-of-range" || return 1


In nft_concat_range.sh line 1857:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
                                                                       ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                 ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " "${i}" "${j}" "${dport}" "$((dport+1))")


In nft_concat_range.sh line 1860:
			if [ $? -ne 0 ];then
                             ^-- SC2181 (style): Check exit code directly with e.g. 'if ! mycmd;', not indirectly with $?.


In nft_concat_range.sh line 1861:
				local got=$(nft "get element inet filter test { $elem }")
                                      ^-^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In nft_concat_range.sh line 1866:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "recheck" || return 1
                                                 ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                       ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                              ^-------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                                            ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d" "$dport") "recheck" || return 1


In nft_concat_range.sh line 1867:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "recheck out-of-range" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d1" $((dport+1))) "recheck out-of-range" || return 1


In nft_concat_range.sh line 1878:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
                                                                       ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                 ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " "${i}" "${j}" "${dport}" "$((dport+1))")


In nft_concat_range.sh line 1885:
			if [ $? -eq 0 ];then
                             ^-- SC2181 (style): Check exit code directly with e.g. 'if mycmd;', not indirectly with $?.


In nft_concat_range.sh line 1890:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "match after deletion" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^-------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                                              ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d" "$dport") "match after deletion" || return 1


In nft_concat_range.sh line 2004:
		printf "%5ds%-30s" $((tnow-tthen))
                       ^---------^ SC2183 (warning): This format string has 2 variables, but is passed 1 argument.

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...
  https://www.shellcheck.net/wiki/SC2155 -- Declare and assign separately to ...
  https://www.shellcheck.net/wiki/SC2183 -- This format string has 2 variable...

 ====== Checking the tree with the patch ======
Checking tools/testing/selftests/net/netfilter/nft_concat_range.sh - 9af70c1607bb45389b2152f3d374bb2b870aa13f5390f3ff007123fa4497b76a


In nft_concat_range.sh line 535:
	B() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 560:
	send_icmp() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 568:
		send_icmp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 574:
		send_icmp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 585:
		send_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 599:
		send_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 617:
		send_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 639:
		send_udp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 659:
		send_udp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 678:
		send_udp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 699:
		flood_tcp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 728:
		flood_tcp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 757:
		flood_tcp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 793:
		flood_tcp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 822:
		flood_tcp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 851:
		flood_tcp6() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 887:
		flood_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 916:
		flood_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 945:
		flood_udp() {
                ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 985:
	perf_ipv4() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 992:
	perf_ipv6() {
        ^-- SC2329 (info): This function is never invoked. Check usage (or ignored if invoked indirectly).


In nft_concat_range.sh line 1401:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1408:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1424:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1431:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1437:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1445:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1452:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1460:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1466:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1473:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1479:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1488:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1496:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1505:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1515:
			[ $i -gt 1 ] && echo ", "
                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			[ "$i" -gt 1 ] && echo ", "


In nft_concat_range.sh line 1844:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
                                                                       ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                 ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " "${i}" "${j}" "${dport}" "$((dport+1))")


In nft_concat_range.sh line 1847:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "before add" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d1" $((dport+1))) "before add" || return 1


In nft_concat_range.sh line 1851:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "after add" || return 1
                                                 ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                       ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                              ^-------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                                            ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d" "$dport") "after add" || return 1


In nft_concat_range.sh line 1854:
			if [ $? -ne 0 ];then
                             ^-- SC2181 (style): Check exit code directly with e.g. 'if ! mycmd;', not indirectly with $?.


In nft_concat_range.sh line 1855:
				local got=$(nft "get element inet filter test { $elem }")
                                      ^-^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In nft_concat_range.sh line 1860:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "out-of-range" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d1" $((dport+1))) "out-of-range" || return 1


In nft_concat_range.sh line 1869:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
                                                                       ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                 ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " "${i}" "${j}" "${dport}" "$((dport+1))")


In nft_concat_range.sh line 1872:
			if [ $? -ne 0 ];then
                             ^-- SC2181 (style): Check exit code directly with e.g. 'if ! mycmd;', not indirectly with $?.


In nft_concat_range.sh line 1873:
				local got=$(nft "get element inet filter test { $elem }")
                                      ^-^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In nft_concat_range.sh line 1878:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "recheck" || return 1
                                                 ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                       ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                          ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                              ^-------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                                            ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			maybe_send_match "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d" "$dport") "recheck" || return 1


In nft_concat_range.sh line 1879:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "recheck out-of-range" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d1" $((dport+1))) "recheck out-of-range" || return 1


In nft_concat_range.sh line 1890:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
                                                                       ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                 ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " "${i}" "${j}" "${dport}" "$((dport+1))")


In nft_concat_range.sh line 1897:
			if [ $? -eq 0 ];then
                             ^-- SC2181 (style): Check exit code directly with e.g. 'if mycmd;', not indirectly with $?.


In nft_concat_range.sh line 1902:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "match after deletion" || return 1
                                                   ^--------------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                                                                                ^-------------------^ SC2046 (warning): Quote this to prevent word splitting.
                                                                                              ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" "$i" "$j") $(printf "%d" "$dport") "match after deletion" || return 1


In nft_concat_range.sh line 2047:
		printf "%5ds%-30s" $((tnow-tthen))
                       ^---------^ SC2183 (warning): This format string has 2 variables, but is passed 1 argument.

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...
  https://www.shellcheck.net/wiki/SC2155 -- Declare and assign separately to ...
  https://www.shellcheck.net/wiki/SC2183 -- This format string has 2 variable...