diff --git a/lib/xy.h b/lib/xy.h
index bc5d753..8b1874b 100644
--- a/lib/xy.h
+++ b/lib/xy.h
@@ -624,7 +624,8 @@ xy_run_iter (const char *cmd,  unsigned long n,  void (*iter_func) (const char *
     {
       if (NULL == fgets (buf, size, stream))
         break;
-      ret = buf;
+      /* 存在换行的总是会把换行符读出来，删掉 */
+      ret = xy_str_delete_suffix (buf, "\n");
       count += 1;
       if (n == count)
         break;
diff --git a/src/framework/core.c b/src/framework/core.c
index 2b205d8..f3c46d1 100644
--- a/src/framework/core.c
+++ b/src/framework/core.c
@@ -472,13 +472,15 @@ measure_speed_for_url (void *url)
 
   time_sec = "8";
 
-  /* 现在我们切换至跳转后的链接来测速，不再使用下述判断
-  if (xy_str_start_with(url, "https://registry.npmmirror"))
-    {
-      // 这里 npmmirror 跳转非常慢，需要1~3秒，所以我们给它留够至少8秒测速时间，否则非常不准
-      time_sec = "10";
-    }
-  */
+  /**
+   * 现在我们切换至跳转后的链接来测速，不再使用下述判断
+   *
+   * if (xy_str_start_with(url, "https://registry.npmmirror"))
+   *   {
+   *     // 这里 npmmirror 跳转非常慢，需要1~3秒，所以我们给它留够至少8秒测速时间，否则非常不准
+   *     time_sec = "10";
+   *   }
+   */
 
   char *ipv6 = ""; // 默认不启用
 
@@ -487,11 +489,11 @@ measure_speed_for_url (void *url)
       ipv6 = "--ipv6";
     }
 
-
   char *os_devnull = xy_os_devnull;
 
-  // 我们用 —L，因为Ruby China源会跳转到其他地方
-  // npmmirror 也会跳转
+  /**
+   * @note 我们用 —L，因为部分链接会跳转到其他地方，比如: RubyChina, npmmirror
+   */
   char *curl_cmd = xy_strjoin (8, "curl -qsL ", ipv6,
                                   " -o ", os_devnull,
                                   " -w \"%{http_code} %{speed_download}\" -m", time_sec,
@@ -501,9 +503,6 @@ measure_speed_for_url (void *url)
 
   char *curl_buf = xy_run (curl_cmd, 0);
 
-  // 如果尾部有换行，删除
-  curl_buf = xy_str_strip (curl_buf);
-
   return curl_buf;
 }
 
diff --git a/src/recipe/lang/Python/Rye.c b/src/recipe/lang/Python/Rye.c
index bb6687e..9957570 100644
--- a/src/recipe/lang/Python/Rye.c
+++ b/src/recipe/lang/Python/Rye.c
@@ -13,7 +13,7 @@ char *
 pl_python_find_rye_config ()
 {
   char *buf = xy_run ("rye config --show-path", 0);
-  char *rye_config = xy_normalize_path (xy_str_strip (buf));
+  char *rye_config = xy_normalize_path (buf);
 
   return rye_config;
 }
diff --git a/src/recipe/lang/Ruby.c b/src/recipe/lang/Ruby.c
index 8f77f09..d0f2bf2 100644
--- a/src/recipe/lang/Ruby.c
+++ b/src/recipe/lang/Ruby.c
@@ -56,8 +56,7 @@ pl_ruby_remove_gem_source (const char *source)
   char *cmd = NULL;
   if (is_url (source))
     {
-      cmd = xy_str_delete_suffix (source, "\n");
-      cmd = xy_2strjoin ("gem sources -r ", cmd);
+      cmd = xy_2strjoin ("gem sources -r ", source);
       chsrc_run (cmd, RunOpt_Default);
     }
 }
diff --git a/src/recipe/os/APT/common.h b/src/recipe/os/APT/common.h
index b1179b7..28aa8e7 100644
--- a/src/recipe/os/APT/common.h
+++ b/src/recipe/os/APT/common.h
@@ -60,13 +60,10 @@ ensure_apt_sourcelist (int debian_type)
       chsrc_note2 (msg);
     }
 
-  // 反向引用需要escape一下
+  /* 反向引用需要escape */
   char *codename = xy_run ("sed -nr 's/VERSION_CODENAME=(.*)/\\1/p' " ETC_OS_RELEASE, 0);
-  codename = xy_str_delete_suffix (codename, "\n");
 
   char *version_id = xy_run ("sed -nr 's/VERSION_ID=\"(.*)\"/\\1/p' " ETC_OS_RELEASE, 0);
-  version_id = xy_str_delete_suffix (codename, "\n");
-
 
   double version = atof (version_id);
 
diff --git a/src/recipe/os/YUM/Rocky-Linux.c b/src/recipe/os/YUM/Rocky-Linux.c
index 01a4b56..8ca433c 100644
--- a/src/recipe/os/YUM/Rocky-Linux.c
+++ b/src/recipe/os/YUM/Rocky-Linux.c
@@ -28,7 +28,7 @@ def_sources_n(os_rockylinux);
 
 
 /**
- * 参考: https://help.mirrors.cernet.edu.cn/rocky/
+ * @consult https://help.mirrors.cernet.edu.cn/rocky/
  */
 void
 os_rockylinux_setsrc (char *option)
@@ -37,9 +37,7 @@ os_rockylinux_setsrc (char *option)
 
   chsrc_yield_source_and_confirm (os_rockylinux);
 
-
   char *version_str = xy_run ("sed -nr 's/ROCKY_SUPPORT_PRODUCT_VERSION=\"(.*)\"/\\1/p' " ETC_OS_RELEASE, 0);
-  version_str = xy_str_delete_suffix (version_str, "\n");
   double version = atof (version_str);
 
   char *cmd = NULL;
diff --git a/src/recipe/os/pacman/Arch-Linux.c b/src/recipe/os/pacman/Arch-Linux.c
index c640593..5200ed6 100644
--- a/src/recipe/os/pacman/Arch-Linux.c
+++ b/src/recipe/os/pacman/Arch-Linux.c
@@ -28,7 +28,7 @@ static Source_t os_arch_sources[] =
 
 /**
  * @update 2024-07-03
- * @note 根据 GitHub:@zheng7fu2 建议，拆分 archlinuxcn 出来
+ * @note 根据 @zheng7fu2 建议，拆分 archlinuxcn 出来
  */
 os_archlinuxcn_sources[] =
 {
@@ -53,9 +53,9 @@ os_arch_getsrc (char *option)
 }
 
 /**
- * 参考:
- * 1. https://mirrors.tuna.tsinghua.edu.cn/help/archlinux/
- * 2. https://mirrors.tuna.tsinghua.edu.cn/help/archlinuxarm/
+ * @consult
+ *   1. https://mirrors.tuna.tsinghua.edu.cn/help/archlinux/
+ *   2. https://mirrors.tuna.tsinghua.edu.cn/help/archlinuxarm/
  */
 void
 os_arch_setsrc (char *option)
@@ -104,7 +104,7 @@ os_archlinuxcn_getsrc (char *option)
 }
 
 /**
- * 参考 https://mirrors.tuna.tsinghua.edu.cn/help/archlinuxcn/
+ * @consult https://mirrors.tuna.tsinghua.edu.cn/help/archlinuxcn/
  */
 void
 os_archlinuxcn_setsrc (char *option)
diff --git a/src/recipe/ware/Docker-Hub.c b/src/recipe/ware/Docker-Hub.c
index f688d8d..c6781ed 100644
--- a/src/recipe/ware/Docker-Hub.c
+++ b/src/recipe/ware/Docker-Hub.c
@@ -98,7 +98,7 @@ wr_dockerhub_setsrc (char *option)
                                          "\")' ",
                                          WARE_DockerHub_SourceConfig);
               char *ret = xy_run(cmd, 0);
-              if (ret && !xy_streql(ret, "null\n"))
+              if (ret && !xy_streql(ret, "null"))
                 {
                   chsrc_note2 ("已存在源，无需重复添加");
                 }