diff --git a/scripts/chk_shellscripts/chk_shellscripts.sh b/scripts/chk_shellscripts/chk_shellscripts.sh
index 4f5c23743a4b..f94d9f2da32d 100755
--- a/scripts/chk_shellscripts/chk_shellscripts.sh
+++ b/scripts/chk_shellscripts/chk_shellscripts.sh
@@ -4,16 +4,8 @@ set -eu
 
 REPO_ROOT="$(dirname "$0")"/../..
 REPO_ROOT=$(realpath "${REPO_ROOT}")
-IGNORE_FILENAME="ignore.txt"
-IGNORE_FILE="${REPO_ROOT}/scripts/chk_shellscripts/${IGNORE_FILENAME}"
 
-FOUND_FILES_TMP=$(mktemp)
-IGNORE_FILES_TMP=$(mktemp)
-trap 'rm -f ${FOUND_FILES_TMP} ; rm -f ${IGNORE_FILES_TMP}' EXIT
-
-sort < "${IGNORE_FILE}" >"${IGNORE_FILES_TMP}"
 cd "${REPO_ROOT}"
-find . -type f -name "*.sh" | sort >"${FOUND_FILES_TMP}"
 
 SHELLCHECK=${SHELLCHECK:-"$(command -v -- shellcheck)"}
 if [ ! -f "${SHELLCHECK}" ]; then
@@ -21,7 +13,5 @@ if [ ! -f "${SHELLCHECK}" ]; then
     exit 1
 fi
 
-FILES=$(join -v2 "${IGNORE_FILES_TMP}" "${FOUND_FILES_TMP}")
-
-# shellcheck disable=SC2086
-"${SHELLCHECK}" ${FILES[*]}
+mapfile -t FILES < <(find . -type f -name "*.sh")
+"${SHELLCHECK}" "${FILES[@]}"