diff --git a/CFwarp.sh b/CFwarp.sh
index 5fba691..74c5954 100644
--- a/CFwarp.sh
+++ b/CFwarp.sh
@@ -19,21 +19,21 @@ readp(){ read -p "$(yellow "$1")" $2;}
 [[ $EUID -ne 0 ]] && yellow "请以root模式运行脚本" && exit
 #[[ -e /etc/hosts ]] && grep -qE '^ *172.65.251.78 gitlab.com' /etc/hosts || echo -e '\n172.65.251.78 gitlab.com' >> /etc/hosts
 if [[ -f /etc/redhat-release ]]; then
-release="Centos"
-elif cat /etc/issue | grep -q -E -i "debian"; then
-release="Debian"
-elif cat /etc/issue | grep -q -E -i "ubuntu"; then
-release="Ubuntu"
-elif cat /etc/issue | grep -q -E -i "centos|red hat|redhat"; then
-release="Centos"
-elif cat /proc/version | grep -q -E -i "debian"; then
-release="Debian"
-elif cat /proc/version | grep -q -E -i "ubuntu"; then
-release="Ubuntu"
-elif cat /proc/version | grep -q -E -i "centos|red hat|redhat"; then
-release="Centos"
-else 
-red "不支持当前的系统，请选择使用Ubuntu,Debian,Centos系统。" && exit
+    release="Centos"
+elif grep -q -E -i "debian" /etc/issue; then
+    release="Debian"
+elif grep -q -E -i "ubuntu" /etc/issue; then
+    release="Ubuntu"
+elif grep -q -E -i "centos|red hat|redhat" /etc/issue; then
+    release="Centos"
+elif grep -q -E -i "debian" /proc/version; then
+    release="Debian"
+elif grep -q -E -i "ubuntu" /proc/version; then
+    release="Ubuntu"
+elif grep -q -E -i "centos|red hat|redhat" /proc/version; then
+    release="Centos"
+else
+    red "不支持当前的系统，请选择使用Ubuntu,Debian,Centos系统。" && exit
 fi
 vsid=$(grep -i version_id /etc/os-release | cut -d \" -f2 | cut -d . -f1)
 op=$(cat /etc/redhat-release 2>/dev/null || cat /etc/os-release 2>/dev/null | grep -i pretty_name | cut -d \" -f2)