diff --git a/tools/init b/tools/init
index 1848f9b..5ea1da0 100755
--- a/tools/init
+++ b/tools/init
@@ -21,7 +21,7 @@ help() {
 check_status() {
   if [[ -n $(git status . -s) ]]; then
     echo "Error: Commit unstaged files first, and then run this tool again."
-    exit -1
+    exit 1
   fi
 }
 
@@ -33,7 +33,8 @@ check_init() {
   else
     if [[ -f .github/workflows/$ACTIONS_WORKFLOW ]]; then
       # on BSD, the `wc` could contains blank
-      local _count="$(find .github/workflows/ -type f -name "*.yml" | wc -l)"
+      local _count
+      _count=$(find .github/workflows/ -type f -name "*.yml" | wc -l)
       if [[ ${_count//[[:blank:]]/} == 1 ]]; then
         _has_inited=true
       fi
@@ -47,7 +48,7 @@ check_init() {
 }
 
 checkout_latest_tag() {
-  tag=$(git describe --tags $(git rev-list --tags --max-count=1))
+  tag=$(git describe --tags "$(git rev-list --tags --max-count=1)")
   git reset --hard "$tag"
 }
 
diff --git a/tools/release b/tools/release
index b9cdfbc..f6bc6d0 100755
--- a/tools/release
+++ b/tools/release
@@ -104,7 +104,7 @@ check() {
 
 _bump_file() {
   for i in "${!FILES[@]}"; do
-    if [[ ${FILES[$i]} == $NODE_CONFIG ]]; then
+    if [[ ${FILES[$i]} == "$NODE_CONFIG" ]]; then
       continue
     fi