所以我有 NVIDIA 的 CUDA API 的三个安装程序——第一个是一个驱动程序，带有很好的静默安装标志选项（但你必须是 root 并且必须有运行级别 3）。
下面显示了下面的后两个手动安装（为简洁起见，省略了之后安装的冗长混乱）
[root]# sh cudatoolkit_4.1.28_linux_64_rhel5.x.run 验证存档完整性...一切都很好。解压缩 NVIDIA CUDA................................................................. ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ………………………………………………………………………………………………………………………………………………
Enter install path (default /usr/local/cuda, '/cuda' will be appended):
A previous version of CUDA was found in /usr/local/cuda/bin
你想卸载吗？（是/否/中止）：是
换句话说，我需要识别：“输入安装路径”并输出一个 '\n'
现在棘手的部分是卸载可能并不总是存在。如果不是，我只需等待安装完成，但如果我看到“你想卸载吗？” 我需要输出“是”才能完成。
第三个也是最后一个安装程序的输出如下所示....
[root]# sh gpucomputingsdk_4.1.28_linux.run
验证存档完整性...一切都好。
解压缩 NVIDIA GPU 计算
开发工具包.................................................. ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ..................................................... ................................................................ 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输入安装路径（默认 ~/NVIDIA_GPU_Computing_SDK）： /usr/local/CUDA_SDK
CUDA 位于 /usr/local/cuda
如果正确，请选择下面的默认值。
如果不正确，输入正确的CUDA
路径输入CUDA安装路径（默认/usr/local/cuda）：
对于这个，没有卸载操作，所以看起来有点简单。
我只需要检测“输入安装路径”并输出“/usr/local/CUDA_SDK\n”，然后检测“输入CUDA安装路径”并输出“\n”
我的想法是使用一对期望脚本——每个安装程序一个——但由于命令的双引号内嵌套切换到 root，我在这方面遇到了一些困难。我目前拥有的是：
#!/bin/bash
CR="\"\n\""
YES="\"Yes\""
INSTALL_PATH_REQUEST="\"Enter install path\""
CUDA_PATH_REQUEST="\"Enter CUDA install path\""
UNINSTALL_REQUEST="\"Would you like to uninstall?\""
TOOLKIT=`ls -t cudatoolkit* | head -n 1`
TOOLKIT_EXPECT="sh $TOOLKIT"
SDK=`ls -t gpucomputingsdk* | head -n 1`
SDK_INSTALL_PATH="\"/usr/local/CUDA_SDK\n\""
SDK_EXPECT="sh $SDK"
/bin/su root -c "yum -q -y install expect expectk;
/sbin/init 3; sh `ls -t NVIDIA*|head -n 1` -s --update -a -X;
/usr/bin/expect <<EOF;
spawn $TOOLKIT_EXPECT
expect $INSTALL_PATH_REQUEST
send $CR
expect $UNINSTALL_REQUEST
send $YES
EOF
/usr/bin/expect <<EOF;
spawn $SDK_EXPECT
expect $INSTALL_PATH_REQUEST
send $SDK_INSTALL_PATH
expect $CUDA_PATH_REQUEST
send $CR
EOF
/sbin/init 5"
这将正确切换到 root（一旦输入密码）并正确安装带有内置选项的驱动程序。然后它似乎产生了第二个安装过程并输入第一个参数（回车），但似乎过早地退出了第二个安装程序（例如，我没有看到“是”选项。）。
我觉得我已经很接近了，希望有人能指出我出错的地方并建议正确的语法。
注意：
我添加了 yum install 命令，因为我正在安装的一些机器没有预料到（库存CentOS 6），这样我就省去了那里的麻烦......