须藤回声“某事">>/etc/privilegedFile 不起作用 [英] sudo echo "something" >> /etc/privilegedFile doesn't work

问题描述

这是一个非常简单的问题，至少看起来应该如此，关于 Linux 中的 sudo 权限.

This is a pretty simple question, at least it seems like it should be, about sudo permissions in Linux.

很多时候我只想将某些内容附加到 /etc/hosts 或类似文件，但最终无法添加，因为 >和 >>> 是不允许的，即使是 root.

There are a lot of times when I just want to append something to /etc/hosts or a similar file but end up not being able to because both > and >> are not allowed, even with root.

有没有什么方法可以使这项工作无需 su 或 sudo su 进入根目录?

Is there someway to make this work without having to su or sudo su into root?

推荐答案

使用 tee --append 或 tee -a.

echo 'deb blah ... blah' | sudo tee -a /etc/apt/sources.list

确保避免引号内的引号.

Make sure to avoid quotes inside quotes.

为避免将数据打印回控制台，请将输出重定向到/dev/null.

To avoid printing data back to the console, redirect the output to /dev/null.

echo 'deb blah ... blah' | sudo tee -a /etc/apt/sources.list > /dev/null

记住 (-a/--append) 标志！只是 tee 像 >> 一样工作并且会覆盖你的文件.tee -a 与 >> 的工作方式类似，会写在文件的末尾.

Remember about the (-a/--append) flag! Just tee works like > and will overwrite your file. tee -a works like >> and will write at the end of the file.

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