优化检查输入，和git地址修改打印

Author: Administrator

gen_ssh-key.sh

@@ -1,5 +1,11 @@
 #!/bin/bash
 email=$1
+#检查输入
+if [ -z "$email" ]; then
+    echo "❌ 请提供电子邮件地址作为参数。"
+    echo "用法: ./gen_ssh-key.sh <email>"
+    exit 1
+fi
 ssh-keygen -t ed25519 -C "$email" -N ""
 eval "$(ssh-agent -s)"
 ssh-add ~/.ssh/id_ed25519
@@ -10,4 +16,7 @@ echo "✅ 请将上面的公钥添加到 GitHub/GitLab/Bitbucket 等代码托管
 echo https://github.com/settings/keys
 
 echo "✅ 修改远程仓库地址为 SSH 地址 [email protected]:linjonh/shellscript-install.git"
-git remote set-url origin [email protected]:linjonh/shellscript-install.git
+git remote -v
+echo "修改后的远程仓库地址为："
+git remote set-url origin [email protected]:linjonh/shellscript-install.git
+git remote -v