diff --git a/update_child_repos.sh b/update_child_repos.sh
index a75face..21fc2f7 100755
--- a/update_child_repos.sh
+++ b/update_child_repos.sh
@@ -21,7 +21,7 @@ if [ "${PREVIOUS_COMMIT_ID}" = "${CURRENT_COMMIT_ID}" ]; then
   FILES_PERMISSION_CHANGED=""
 else
   FILES_CHANGED=$(git diff --name-only "${PREVIOUS_COMMIT_ID}" "${CURRENT_COMMIT_ID}" | tr '\n' ' ')
-  FILES_PERMISSION_CHANGED=$(git diff --summary "${PREVIOUS_COMMIT_ID}" "${CURRENT_COMMIT_ID}" | grep "mode change" | sed -E 's/.*mode change [0-9]+ => [0-9]+ (.*)/\1/' | tr '\n' ' ')
+  FILES_PERMISSION_CHANGED=$(git diff --summary "${PREVIOUS_COMMIT_ID}" "${CURRENT_COMMIT_ID}" | (grep "mode change" || true) | sed -E 's/.*mode change [0-9]+ => [0-9]+ (.*)/\1/' | tr '\n' ' ')
 fi
 
 is_file_changed() {
@@ -82,13 +82,13 @@ while IFS= read -r clone_url; do
 
   repo_name=$(basename "${clone_url}" .git)
 
-  git clone "${clone_url}" "${repo_name}"
-  pushd "${repo_name}"
+  git clone "${clone_url}" "${repo_name}" &>/dev/null
+  pushd "${repo_name}" >/dev/null
 
   TEMPLATE_REMOTE_NAME="template"
   git remote add "${TEMPLATE_REMOTE_NAME}" "${TEMPLATE_REPO_DIR}"
 
-  git fetch "${TEMPLATE_REMOTE_NAME}" "${TEMPLATE_BRANCH}"
+  git fetch "${TEMPLATE_REMOTE_NAME}" "${TEMPLATE_BRANCH}" &>/dev/null
 
   current_branch=$(git rev-parse --abbrev-ref HEAD)
 
@@ -177,13 +177,13 @@ while IFS= read -r clone_url; do
       git push
     else
       echo "Warning: Merge conflicts detected in ${repo_name}"
-      popd
+      popd >/dev/null
       rm -rf "${repo_name}"
       continue
     fi
   fi
 
-  popd
+  popd >/dev/null
   rm -rf "${repo_name}"
 done <<< "${CLONE_URLS}"