未验证 提交 ef755182 编辑于 作者: Shaun Jackman's avatar Shaun Jackman 提交者: GitHub
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Merge pull request #9279 from sjackman/sj/fq-linux

FAQ: Default installation prefix on Linux
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hub pull someone_else
```
## Why should I install Homebrew in the default location?
Homebrew's pre-built binary packages (known as [bottles](Bottles.md)) of many packages can only be used if you install in the default installation prefix, otherwise they have to be built from source. Building from source takes a long time, is prone to fail, and is not supported. Do yourself a favour and install to the default prefix so that you can use our pre-built binary packages. The default prefix is `/usr/local` for macOS on Intel, `/opt/homebrew` for macOS on ARM, and `/home/linuxbrew/.linuxbrew` for Linux. *Pick another prefix at your peril!*
## Why does Homebrew prefer I install to `/usr/local`?
1. **It’s easier**<br>`/usr/local/bin` is already in your
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It is not always straightforward to tell `gem` to look in non-standard directories for headers and libraries. If you choose `/usr/local`, many things will "just work".
## Why is the default installation prefix `/home/linuxbrew/.linuxbrew` on Linux?
The prefix `/home/linuxbrew/.linuxbrew` was chosen so that users without admin access can ask an admin to create a `linuxbrew` role account and still benefit from precompiled binaries. If you do not yourself have admin privileges, consider asking your admin staff to create a `linuxbrew` role account for you with home directory `/home/linuxbrew`.
## Why does Homebrew say sudo is bad?
**tl;dr** Sudo is dangerous, and you installed TextMate.app without sudo
anyway.
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The installation script installs Homebrew to `/home/linuxbrew/.linuxbrew` using *sudo* if possible and in your home directory at `~/.linuxbrew` otherwise. Homebrew does not use *sudo* after installation. Using `/home/linuxbrew/.linuxbrew` allows the use of more binary packages (bottles) than installing in your personal home directory.
The prefix `/home/linuxbrew/.linuxbrew` was chosen so that users without admin access can ask an admin to create a `linuxbrew` role account and still benefit from precompiled binaries. If you do not yourself have admin privileges, consider asking your admin staff to create a `linuxbrew` role account for you with home directory `/home/linuxbrew`.
Follow the *Next steps* instructions to add Homebrew to your `PATH` and to your bash shell profile script, either `~/.profile` on Debian/Ubuntu or `~/.bash_profile` on CentOS/Fedora/Red Hat.
```sh
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