In /logs/firmware/unblob_extracted/firmware_extract/DIR-600_fw_revb5_214b01_ALL_de_20130122/dir600b_v2.14_d1mg.bin_extract/1179788-3612812.squashfs_v4_le_extract/etc/events/WAN_ppp_dis.sh line 2:
echo [$0] [$1] [$2] ... > /dev/console
      ^-- 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:
echo ["$0"] ["$1"] ["$2"] ... > /dev/console


In /logs/firmware/unblob_extracted/firmware_extract/DIR-600_fw_revb5_214b01_ALL_de_20130122/dir600b_v2.14_d1mg.bin_extract/1179788-3612812.squashfs_v4_le_extract/etc/events/WAN_ppp_dis.sh line 3:
xmldbc -P /etc/events/WAN_ppp_dis.php -V INF=$1 -V ACT=$2 > /var/run/$1_ppp_dis_$2.sh
                                             ^-- 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.
                                                                                ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
xmldbc -P /etc/events/WAN_ppp_dis.php -V INF="$1" -V ACT="$2" > /var/run/"$1"_ppp_dis_"$2".sh


In /logs/firmware/unblob_extracted/firmware_extract/DIR-600_fw_revb5_214b01_ALL_de_20130122/dir600b_v2.14_d1mg.bin_extract/1179788-3612812.squashfs_v4_le_extract/etc/events/WAN_ppp_dis.sh line 4:
sh /var/run/$1_ppp_dis_$2.sh
            ^-- SC2086 (info): Double quote to prevent globbing and word splitting.
                       ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
sh /var/run/"$1"_ppp_dis_"$2".sh

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...

[*] Source file WAN_ppp_dis.sh