fix: handle Ubuntu VERSION_ID in sysctl config

1.sh

@@ -38,6 +38,25 @@ load_shared_script() {
   fi
 }
 
+get_debian_major_version() {
+  local version_id=""
+
+  if [ -r /etc/os-release ]; then
+    version_id=$(sed -n 's/^VERSION_ID="\?\([^"[:space:]]*\)"\?$/\1/p' /etc/os-release | head -n 1)
+  fi
+
+  if [ -z "$version_id" ] && [ -r /etc/debian_version ]; then
+    version_id=$(head -n 1 /etc/debian_version)
+  fi
+
+  version_id=${version_id%%/*}
+  version_id=${version_id%%.*}
+
+  if [[ "$version_id" =~ ^[0-9]+$ ]]; then
+    echo "$version_id"
+  fi
+}
+
 if [ "$EUID" -ne 0 ]; then
   print_red "请使用 sudo 运行此脚本"
   exit 1
@@ -82,24 +101,6 @@ sysctl_config() {
   SYSCTL_CONF="/etc/sysctl.conf"
   SYSCTL_CLEANUP_FILES=("/etc/sysctl.conf" "/etc/sysctl.d/99-sysctl.conf" "/etc/sysctl.d/999-custom.conf")
   if [ "$SYSTEM_TYPE" = "debian" ]; then
-      get_debian_major_version() {
-        local version_id=""
-
-        if [ -r /etc/os-release ]; then
-          version_id=$(sed -n 's/^VERSION_ID="\?\([^"[:space:]]*\)"\?$/\1/p' /etc/os-release | head -n 1)
-        fi
-
-        if [ -z "$version_id" ] && [ -r /etc/debian_version ]; then
-          version_id=$(head -n 1 /etc/debian_version)
-        fi
-
-        version_id=${version_id%%/*}
-        version_id=${version_id%%.*}
-
-        if [[ "$version_id" =~ ^[0-9]+$ ]]; then
-          echo "$version_id"
-        fi
-      }
     DEBIAN_VERSION=$(get_debian_major_version)
 
     if [ -z "$DEBIAN_VERSION" ]; then