警告：sudo() 在执行时遇到错误（返回代码 1）：Fabric

发布于 2024-10-28 23:17:22 字数 428 浏览 1 评论 0原文

我是布料新手。我正在尝试检查远程计算机上是否安装了 setkey。为此，我只是想检查它的版本号，如果它返回错误，那么它将安装所需的包。以下是代码

with settings(hide('stdout'), warn_only=True):
    out = sudo('setkey -V', shell=False);
    if out.failed:
        print(red("* Setkey not installed. Installing"))
        sudo(setkey_install)

但是我收到警告

警告：执行“setkey -V”时 sudo() 遇到错误（返回代码 1）

这可能是什么原因？还有其他方法可以检查软件包是否已安装吗？

原文

I'm new to fabric. I'm trying to check if setkey is installed in the remote machine. For that I'm just trying to check its version number and if it returns an error then it will install the required package. The following is the code

with settings(hide('stdout'), warn_only=True):
    out = sudo('setkey -V', shell=False);
    if out.failed:
        print(red("* Setkey not installed. Installing"))
        sudo(setkey_install)

However I'm getting a warning

Warning: sudo() encountered an error (return code 1) while executing 'setkey -V'

What could be the reason for this? Is there any other way to check if a package is installed?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

執念 2024-11-04 23:17:23

我将使用 *nix 命令 which 返回 setkey 的位置（如果不存在则不返回任何内容），如下所示：

with settings(hide('stdout'), warn_only=True):
    if not run('which setkey'):
        print(red("* Setkey not installed. Installing..."))
        sudo(setkey_install)

Since run 返回给定命令的输出，您应该能够像这样使用 not 运算符。

I would use the *nix command which to return the location of the setkey (or nothing if it doesn't exist), with something like this:

with settings(hide('stdout'), warn_only=True):
    if not run('which setkey'):
        print(red("* Setkey not installed. Installing..."))
        sudo(setkey_install)

Since run returns the output of the command it's given you should be able to use the not operator on it like this.

回复收藏 0 原文

~没有更多了~