Update t.sh

old/t.sh

@@ -250,10 +250,10 @@ install(){
 	green "\n ${T[${L}11]}\n "
 	latest=$(curl -fsSL "https://api.github.com/repos/ViRb3/wgcf/releases/latest" | grep "tag_name" | head -n 1 | cut -d : -f2 | sed 's/[ \"v,]//g')
 	latest=${latest:-'2.2.13'}
-	curl -m8 -o /usr/local/bin/wgcf https://raw.githubusercontents.com/fscarmen/warp/main/wgcf/wgcf_"$latest"_darwin_amd64
+	[[ ! -e /usr/local/bin/wgcf ]] && curl -m8 -o /usr/local/bin/wgcf https://raw.githubusercontents.com/fscarmen/warp/main/wgcf/wgcf_"$latest"_darwin_amd64
 
 	# 安装 wireguard-go
-	curl -o /usr/local/bin/wireguard-go_darwin_amd64.tar.gz https://raw.githubusercontents.com/fscarmen/warp/main/wireguard-go/wireguard-go_darwin_amd64.tar.gz &&
+	[[ ! -e /usr/local/bin/wireguard-go ]] && curl -o /usr/local/bin/wireguard-go_darwin_amd64.tar.gz https://raw.githubusercontents.com/fscarmen/warp/main/wireguard-go/wireguard-go_darwin_amd64.tar.gz &&
 	tar xzf /usr/local/bin/wireguard-go_darwin_amd64.tar.gz -C /usr/local/bin/ && rm -f /usr/local/bin/wireguard-go_darwin_amd64.tar.gz
 
 	# 添加执行权限