In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/fan_status.sh line 4:

	logger -s -t${0##*/} -p err -- $*

                    ^------^ SC2086 (info): Double quote to prevent globbing and word splitting.

                                       ^-- SC2048 (warning): Use "$@" (with quotes) to prevent whitespace problems.

                                       ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 

	logger -s -t"${0##*/}" -p err -- "$*"

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/fan_status.sh line 24:

while [ $i -lt $nbr_of_fans ]; do

               ^----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 

while [ $i -lt "$nbr_of_fans" ]; do

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/fan_status.sh line 31:

	stat=$(echo $stat)

             ^-----------^ SC2116 (style): Useless echo? Instead of 'cmd $(echo foo)', just use 'cmd foo'.

                    ^---^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 

	stat=$(echo "$stat")

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/fan_status.sh line 39:

	i=$(($i + 1))

             ^-- SC2004 (style): $/${} is unnecessary on arithmetic variables.

For more information:

  https://www.shellcheck.net/wiki/SC2048 -- Use "$@" (with quotes) to prevent...

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

  https://www.shellcheck.net/wiki/SC2004 -- $/${} is unnecessary on arithmeti...