In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/dnsupdate.cgi line 3:

. /usr/html/axis-cgi/lib/functions.sh

  ^-- SC1091 (info): Not following: /usr/html/axis-cgi/lib/functions.sh was not specified as input (see shellcheck -x).

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/dnsupdate.cgi line 21:

	[ "$cmd" -a "$val" ] || break

                 ^-- SC2166 (warning): Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/dnsupdate.cgi line 30:

					echo -e "Registered new address on dns.\r"

                                             ^-- SC3037 (warning): In POSIX sh, echo flags are undefined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/dnsupdate.cgi line 33:

					echo -e "Failed to register new address on dns.\r"

                                             ^-- SC3037 (warning): In POSIX sh, echo flags are undefined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/dnsupdate.cgi line 45:

					echo -e "Unregistered old address from dns.\r"

                                             ^-- SC3037 (warning): In POSIX sh, echo flags are undefined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/html/axis-cgi/dnsupdate.cgi line 48:

					echo -e "Failed to unregister old address from dns.\r"

                                             ^-- SC3037 (warning): In POSIX sh, echo flags are undefined.

For more information:

  https://www.shellcheck.net/wiki/SC2166 -- Prefer [ p ] && [ q ] as [ p -a q...

  https://www.shellcheck.net/wiki/SC3037 -- In POSIX sh, echo flags are undef...

  https://www.shellcheck.net/wiki/SC1091 -- Not following: /usr/html/axis-cgi...