In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 3:

. /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/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 4:

. /lib/rcscripts/sh/files.sh

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

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 6:

readonly F_TMPCONF=$F_CONF.tmp

         ^-------^ SC2034 (warning): F_TMPCONF appears unused. Verify use (or export if used externally).

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 11:

	local pd=/lib/persistent sf=$NAME.state

        ^-------------------------^ SC3043 (warning): In POSIX sh, 'local' is undefined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 12:

	local spd=$pd/var/lib/$NAME

        ^-------^ SC3043 (warning): In POSIX sh, 'local' is undefined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 13:

	local spdf=$spd/$sf out= g

        ^------------------------^ SC3043 (warning): In POSIX sh, 'local' is undefined.

                                ^-- SC1007 (warning): Remove space after = if trying to assign a value (for empty string, use var='' ... ).

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 21:

		out="$out[Mechanics.$g]

                     ^-- SC1087 (error): Use braces when expanding arrays, e.g. ${array[idx]} (or ${var}[.. to quiet).

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 52:

	. $F_CONF

          ^-----^ SC1090 (warning): ShellCheck can't follow non-constant source. Use a directive to specify location.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/bin/focusd-setup line 72:

) 200>/var/lock/focusd/focusd.lock

  ^-- SC3023 (warning): In POSIX sh, FDs outside 0-9 are undefined.

For more information:

  https://www.shellcheck.net/wiki/SC1087 -- Use braces when expanding arrays,...

  https://www.shellcheck.net/wiki/SC1007 -- Remove space after = if trying to...

  https://www.shellcheck.net/wiki/SC1090 -- ShellCheck can't follow non-const...