In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 9:

. /lib/rcscripts/sh/error.sh

  ^------------------------^ SC1091 (info): Not following: /lib/rcscripts/sh/error.sh was not specified as input (see shellcheck -x).

In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 11:

[ $# -ge 2 ] && [ "$1" ] && [ "$2" ] ||

                         ^-- SC2015 (info): Note that A && B || C is not if-then-else. C may run when A is true.

In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 27:

				eval param_val=\$$3

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

Did you mean: 

				eval param_val=\$"$3"

In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 33:

					$run start $2 || error "Failed to start $2"

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

Did you mean: 

					$run start "$2" || error "Failed to start $2"

In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 37:

					$run stop $2 || error "Failed to stop $2"

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

Did you mean: 

					$run stop "$2" || error "Failed to stop $2"

In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 46:

			$run $1 $2 || error "Failed to $1 $2"

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

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

Did you mean: 

			$run "$1" "$2" || error "Failed to $1 $2"

In /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-50593792.squashfs_v4_le_extract/usr/bin/parhand-systemctl line 49:

) 9>$lf

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

Did you mean: 

) 9>"$lf"

For more information:

  https://www.shellcheck.net/wiki/SC1091 -- Not following: /lib/rcscripts/sh/...

  https://www.shellcheck.net/wiki/SC2015 -- Note that A && B || C is not if-t...

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