diff --git a/chsrc.c b/chsrc.c
index 51b77dd..5e6b038 100644
--- a/chsrc.c
+++ b/chsrc.c
@@ -869,14 +869,14 @@ os_ubuntu_setsrc (char* option)
   if(strncmp(arch, "x86_64", 6)==0)
   {
     cmd = xy_strjoin(3,
-      "sed -E -i \'s@https?://.*/ubuntu@",
+      "sed -E -i \'s@https?://.*/ubuntu/?@",
       source.url,
       "@g\' /etc/apt/sources.list");
 
   }
   else {
     cmd = xy_strjoin(3,
-      "sed -E -i \'s@https?://.*/ubuntu-ports@",
+      "sed -E -i \'s@https?://.*/ubuntu-ports/?@",
       source.url,
       "-ports@g\' /etc/apt/sources.list");
   }
@@ -919,12 +919,13 @@ os_debian_setsrc (char* option)
   xy_info ("chsrc: 如果遇到无法拉取 HTTPS 源的情况，我们会使用 HTTP 源并 需要您 安装");
   xy_info ("chsrc: sudo apt install apt-transport-https ca-certificates");
 
-  char* backup = "cp -f /etc/apt/sources.list /etc/apt/sources.list.bak --backup='t'";
+  char* backup = "cp /etc/apt/sources.list /etc/apt/sources.list.bak --backup='t'";
   chsrc_runcmd(backup);
 
-  char * cmd = xy_strjoin(3,"chsrc: 备份文件名: /etc/apt/.*)http[:|\\.|\\/|a-z|A-Z]*\\/debian\\/@\\1",
-                          source.url,
-                          "@\'< /etc/apt/sources.list.bak | cat > /etc/apt/sources.list");
+  char* cmd = xy_strjoin(3,
+      "sed -E -i \'s@https?://.*/debian/?@",
+      source.url,
+      "@g\' /etc/apt/sources.list");
 
   chsrc_runcmd(cmd);
 
@@ -961,16 +962,15 @@ os_deepin_setsrc (char* option)
   source_info source = os_deepin_sources[index];
   chsrc_say_selection(&source);
 
-  char* backup = "cp -f /etc/apt/sources.list /etc/apt/sources.list.bak --backup='t'";
+  char* backup = "cp /etc/apt/sources.list /etc/apt/sources.list.bak --backup='t'";
   chsrc_runcmd(backup);
 
   xy_info ("chsrc: 备份文件名: /etc/apt/sources.list.bak");
 
-  char* cmd;
-  cmd = xy_strjoin(3,
-    "sed -E \'s@(^[^#]* .*)http[:|\\.|\\/|a-z|A-Z]*\\/deepin\\/@\\1",
-    source.url,
-    "@\'< /etc/apt/sources.list.bak | cat > /etc/apt/sources.list");
+  char* cmd = xy_strjoin(3,
+      "sed -E -i \'s@https?://.*/deepin/?@",
+      source.url,
+      "@g\' /etc/apt/sources.list");
   chsrc_logcmd(cmd);
   system(cmd);
   // char* rm = "rm -rf /etc/apt/source.list.bak";
@@ -1002,10 +1002,10 @@ os_fedora_setsrc (char* option)
 
   xy_warn ("chsrc: fedora 29 及以下版本暂不支持");
 
-  char* backup = "cp -f /etc/yum.repos.d/fedora.repo /etc/yum.repos.d/fedora.repo.bak --backup='t'";
+  char* backup = "cp /etc/yum.repos.d/fedora.repo /etc/yum.repos.d/fedora.repo.bak --backup='t'";
   chsrc_runcmd(backup);
 
-  backup = "cp -f /etc/yum.repos.d/fedora-updates.repo /etc/yum.repos.d/fedora-updates.repo.bak";
+  backup = "cp /etc/yum.repos.d/fedora-updates.repo /etc/yum.repos.d/fedora-updates.repo.bak";
   chsrc_runcmd(backup);
 
   xy_info ("chsrc: 备份文件名:1. /etc/yum.repos.d/fedora.repo.bak");
@@ -1120,14 +1120,15 @@ os_kali_setsrc(char* option)
   source_info source = os_kali_sources[index];
   chsrc_say_selection(&source);
 
-  char* backup = "cp -f /etc/apt/sources.list /etc/apt/sources.list.bak --backup='t'";
+  char* backup = "cp /etc/apt/sources.list /etc/apt/sources.list.bak --backup='t'";
   chsrc_runcmd(backup);
 
   xy_info ("chsrc: 备份文件名: /etc/apt/sources.list.bak");
 
-  char* cmd = xy_strjoin(3, "sed -i \'s@(^[^#]* .*)http[:|\\.|\\/|a-z|A-Z]*\\/kali\\/@\\1",
-                          source.url,
-                          "@g\' /etc/apt/sources.list");
+  char* cmd = xy_strjoin(3,
+      "sed -E -i \'s@https?://.*/kali/?@",
+      source.url,
+      "@g\' /etc/apt/sources.list");
 
   chsrc_runcmd(cmd);
   // char* rm = "rm -rf /etc/apt/source.list.bak";
@@ -1283,7 +1284,7 @@ os_gentoo_setsrc(char* option)
   chsrc_runcmd(backup);
 
   xy_info ("chsrc: 备份文件名: /etc/portage/repos.conf/gentoo.conf.bak");
-  char* cmd = xy_strjoin(3,"sed -i \"s#rsync[:|\\.|\\/|a-z|A-Z]*/gentoo-portage#rsync://",
+  char* cmd = xy_strjoin(3,"sed -i \"s#rsync://.*/gentoo-portage#rsync://",
                             source.url,
                             "gentoo-portage#g");
   chsrc_runcmd(cmd);
diff --git a/sources.h b/sources.h
index 48cd313..776ac5c 100644
--- a/sources.h
+++ b/sources.h
@@ -370,13 +370,13 @@ os_ubuntu_sources[] = {
  * TODO: 1. 源并不完整，且未经测试是否有效
  */
 os_deepin_sources[] = {
-  {&Ali,       "https://mirrors.aliyun.com/deepin/"},
-  {&Bfsu,      "https://mirrors.bfsu.edu.cn/deepin/"},
-  {&Ustc,      "https://mirrors.ustc.edu.cn/deepin/"},
-  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/deepin/"},
-  {&Tencent,   "https://mirrors.tencent.com/deepin/"},
-  {&Netease,   "https://mirrors.163.com/deepin/"},
-  {&Sohu,      "https://mirrors.sohu.com/deepin/"}
+  {&Ali,       "https://mirrors.aliyun.com/deepin"},
+  {&Bfsu,      "https://mirrors.bfsu.edu.cn/deepin"},
+  {&Ustc,      "https://mirrors.ustc.edu.cn/deepin"},
+  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/deepin"},
+  {&Tencent,   "https://mirrors.tencent.com/deepin"},
+  {&Netease,   "https://mirrors.163.com/deepin"},
+  {&Sohu,      "https://mirrors.sohu.com/deepin"}
 },
 
 
@@ -386,13 +386,13 @@ os_deepin_sources[] = {
  * TODO: 1. 源并不完整，且未经测试是否有效
  */
 os_debian_sources[] = {
-  {&Ali,       "https://mirrors.aliyun.com/debian/"},
-  {&Bfsu,      "https://mirrors.bfsu.edu.cn/debian/"},
-  {&Ustc,      "https://mirrors.ustc.edu.cn/debian/"},
-  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/debian/"},
-  {&Tencent,   "https://mirrors.tencent.com/debian/"},
-  {&Netease,   "https://mirrors.163.com/debian/"},
-  {&Sohu,      "https://mirrors.sohu.com/debian/"}
+  {&Ali,       "https://mirrors.aliyun.com/debian"},
+  {&Bfsu,      "https://mirrors.bfsu.edu.cn/debian"},
+  {&Ustc,      "https://mirrors.ustc.edu.cn/debian"},
+  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/debian"},
+  {&Tencent,   "https://mirrors.tencent.com/debian"},
+  {&Netease,   "https://mirrors.163.com/debian"},
+  {&Sohu,      "https://mirrors.sohu.com/debian"}
 },
 
 
@@ -403,13 +403,13 @@ os_debian_sources[] = {
  * TODO: 1. 源并不完整，且未经测试是否有效
  */
 os_fedora_sources[] = {
-  {&Ali,       "https://mirrors.aliyun.com/fedora/"},
-  {&Bfsu,      "https://mirrors.bfsu.edu.cn/fedora/"},
-  {&Ustc,      "https://mirrors.ustc.edu.cn/fedora/"},
-  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/fedora/"},
-  {&Tencent,   "https://mirrors.tencent.com/fedora/"},
-  {&Netease,   "https://mirrors.163.com/fedora/"},
-  {&Sohu,      "https://mirrors.sohu.com/fedora/"}
+  {&Ali,       "https://mirrors.aliyun.com/fedora"},
+  {&Bfsu,      "https://mirrors.bfsu.edu.cn/fedora"},
+  {&Ustc,      "https://mirrors.ustc.edu.cn/fedora"},
+  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/fedora"},
+  {&Tencent,   "https://mirrors.tencent.com/fedora"},
+  {&Netease,   "https://mirrors.163.com/fedora"},
+  {&Sohu,      "https://mirrors.sohu.com/fedora"}
 },
 
 
@@ -419,13 +419,13 @@ os_fedora_sources[] = {
  * TODO: 1. 源并不完整，且未经测试是否有效
  */
 os_kali_sources[] = {
-  {&Ali,       "https://mirrors.aliyun.com/kali/"},
-  {&Bfsu,      "https://mirrors.bfsu.edu.cn/kali/"},
-  {&Ustc,      "https://mirrors.ustc.edu.cn/kali/"},
-  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/kali/"},
-  {&Tencent,   "https://mirrors.tencent.com/kali/"},
-  {&Netease,   "https://mirrors.163.com/kali/"},
-  {&Sohu,      "https://mirrors.sohu.com/kali/"}
+  {&Ali,       "https://mirrors.aliyun.com/kali"},
+  {&Bfsu,      "https://mirrors.bfsu.edu.cn/kali"},
+  {&Ustc,      "https://mirrors.ustc.edu.cn/kali"},
+  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/kali"},
+  {&Tencent,   "https://mirrors.tencent.com/kali"},
+  {&Netease,   "https://mirrors.163.com/kali"},
+  {&Sohu,      "https://mirrors.sohu.com/kali"}
 },
 
 
@@ -470,13 +470,13 @@ os_gentoo_sources[] = {
  * TODO: 1. 源并不完整，且未经测试是否有效
  */
 os_opensuse_sources[] = {
-  {&Ali,       "https://mirrors.aliyun.com/opensuse/"},
-  {&Bfsu,      "https://mirrors.bfsu.edu.cn/opensuse/"},
-  {&Ustc,      "https://mirrors.ustc.edu.cn/opensuse/"},
-  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/opensuse/"},
-  {&Tencent,   "https://mirrors.tencent.com/opensuse/"},
-  {&Netease,   "https://mirrors.163.com/opensuse/"},
-  {&Sohu,      "https://mirrors.sohu.com/opensuse/"}
+  {&Ali,       "https://mirrors.aliyun.com/opensuse"},
+  {&Bfsu,      "https://mirrors.bfsu.edu.cn/opensuse"},
+  {&Ustc,      "https://mirrors.ustc.edu.cn/opensuse"},
+  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/opensuse"},
+  {&Tencent,   "https://mirrors.tencent.com/opensuse"},
+  {&Netease,   "https://mirrors.163.com/opensuse"},
+  {&Sohu,      "https://mirrors.sohu.com/opensuse"}
 },
 
 
@@ -487,13 +487,13 @@ os_opensuse_sources[] = {
  * TODO: 1. 源并不完整，且未经测试是否有效
  */
 os_msys2_sources[] = {
-  {&Ali,       "https://mirrors.aliyun.com/msys2/"},
-  {&Bfsu,      "https://mirrors.bfsu.edu.cn/msys2/"},
-  {&Ustc,      "https://mirrors.ustc.edu.cn/msys2/"},
-  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/msys2/"},
-  {&Tencent,   "https://mirrors.tencent.com/msys2/"},
-  {&Netease,   "https://mirrors.163.com/msys2/"},
-  {&Sohu,      "https://mirrors.sohu.com/msys2/"}
+  {&Ali,       "https://mirrors.aliyun.com/msys2"},
+  {&Bfsu,      "https://mirrors.bfsu.edu.cn/msys2"},
+  {&Ustc,      "https://mirrors.ustc.edu.cn/msys2"},
+  {&Tuna,      "https://mirrors.tuna.tsinghua.edu.cn/msys2"},
+  {&Tencent,   "https://mirrors.tencent.com/msys2"},
+  {&Netease,   "https://mirrors.163.com/msys2"},
+  {&Sohu,      "https://mirrors.sohu.com/msys2"}
 },