我只是试图通过遵循this article在macOS Mojave系统上更新bash，然后愚蠢地删除了旧的bash二进制文件，并试图用sudo mv /usr/local/bin/bash /bin/bash替换它。这产生了无数其他问题，其中大多数问题我已经通过cp /bin/csh /bin/bash和chsh -s /bin/csh然后是rm -f /bin/bash来解决。
此后，我尝试了三次来卸载并重新安装自制软件（尽管未使用Ruby，并且必须进行文件重定向）。
我猜想这与下面显示的行有关：find: /bin/bash: No such file or directory。安装也会因Failed during: /usr/local/bin/brew update --force而失败，尝试手动运行更新会出现brew: Command not found错误。 echo $PATH返回/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin，无论如何，我直接从/usr/local/bin运行所有这些命令。那有什么呢？ MTIA：-）
[Kents-MacBook-Pro:/usr/local/bin] Kenny% ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Illegal variable name.
[Kents-MacBook-Pro:/usr/local/bin] Kenny% curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall > uninstall.sh
[Kents-MacBook-Pro:/usr/local/bin] Kenny% chmod +x uninstall.sh
[Kents-MacBook-Pro:/usr/local/bin] Kenny% ./uninstall.sh
Warning: This script will remove:
/Users/Kenny/Library/Caches/Homebrew/
/usr/local/Caskroom/
/usr/local/Cellar/
/usr/local/Homebrew/
/usr/local/Homebrew/.editorconfig
/usr/local/Homebrew/.github/
/usr/local/Homebrew/.gitignore
/usr/local/Homebrew/.yardopts
/usr/local/Homebrew/CHANGELOG.md
/usr/local/Homebrew/CONTRIBUTING.md
/usr/local/Homebrew/Dockerfile
/usr/local/Homebrew/LICENSE.txt
/usr/local/Homebrew/Library/
/usr/local/Homebrew/README.md
/usr/local/Homebrew/bin/brew
/usr/local/Homebrew/completions/
/usr/local/Homebrew/docs/
/usr/local/Homebrew/manpages/
/usr/local/bin/brew -> /usr/local/Homebrew/bin/brew
/usr/local/var/homebrew/
Are you sure you want to uninstall Homebrew? This will remove your installed packages! [y/N] y
==> Removing Homebrew installation...
find: /bin/bash: No such file or directory
==> Removing empty directories...
==> /usr/bin/sudo /usr/bin/find /usr/local/bin /usr/local/etc /usr/local/include /usr/local/lib /usr/local/opt /usr/local/sbin /usr/local/share /usr/local/var /usr/local/Frameworks -name .DS_Store -delete
==> /usr/bin/sudo /usr/bin/find /usr/local/bin /usr/local/etc /usr/local/include /usr/local/lib /usr/local/opt /usr/local/sbin /usr/local/share /usr/local/var /usr/local/Frameworks -depth -type d -empty -exec rmdir {} ;
==> Homebrew uninstalled!
The following possible Homebrew files were not deleted:
/usr/local/bin/
/usr/local/.com.apple.installer.keep
/usr/local/libexec/
/usr/local/microsoft/
/usr/local/include/
/usr/local/sbin/
/usr/local/remotedesktop/
/usr/local/etc/
/usr/local/lib/
/usr/local/opt/
/usr/local/git/
/usr/local/share/
You may wish to remove them yourself.
[Kents-MacBook-Pro:/usr/local/bin] Kenny% curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install > install.sh
[Kents-MacBook-Pro:/usr/local/bin] Kenny% chmod +x install.sh
[Kents-MacBook-Pro:/usr/local/bin] Kenny% ./install.sh
==> This script will install:
/usr/local/bin/brew
/usr/local/share/doc/homebrew
/usr/local/share/man/man1/brew.1
/usr/local/share/zsh/site-functions/_brew
/usr/local/etc/bash_completion.d/brew
/usr/local/Homebrew
==> The following new directories will be created:
/usr/local/var
/usr/local/share/zsh
/usr/local/share/zsh/site-functions
/usr/local/var/homebrew
/usr/local/var/homebrew/linked
/usr/local/Cellar
/usr/local/Caskroom
/usr/local/Homebrew
/usr/local/Frameworks
Press RETURN to continue or any other key to abort
==> /usr/bin/sudo /bin/mkdir -p /usr/local/var /usr/local/share/zsh /usr/local/share/zsh/site-functions /usr/local/var/homebrew /usr/local/var/homebrew/linked /usr/local/Cellar /usr/local/Caskroom /usr/local/Homebrew /usr/local/Frameworks
==> /usr/bin/sudo /bin/chmod g+rwx /usr/local/var /usr/local/share/zsh /usr/local/share/zsh/site-functions /usr/local/var/homebrew /usr/local/var/homebrew/linked /usr/local/Cellar /usr/local/Caskroom /usr/local/Homebrew /usr/local/Frameworks
==> /usr/bin/sudo /bin/chmod 755 /usr/local/share/zsh /usr/local/share/zsh/site-functions
==> /usr/bin/sudo /usr/sbin/chown Kenny /usr/local/var /usr/local/share/zsh /usr/local/share/zsh/site-functions /usr/local/var/homebrew /usr/local/var/homebrew/linked /usr/local/Cellar /usr/local/Caskroom /usr/local/Homebrew /usr/local/Frameworks
==> /usr/bin/sudo /usr/bin/chgrp admin /usr/local/var /usr/local/share/zsh /usr/local/share/zsh/site-functions /usr/local/var/homebrew /usr/local/var/homebrew/linked /usr/local/Cellar /usr/local/Caskroom /usr/local/Homebrew /usr/local/Frameworks
==> /usr/bin/sudo /bin/mkdir -p /Users/Kenny/Library/Caches/Homebrew
==> /usr/bin/sudo /bin/chmod g+rwx /Users/Kenny/Library/Caches/Homebrew
==> /usr/bin/sudo /usr/sbin/chown Kenny /Users/Kenny/Library/Caches/Homebrew
==> Downloading and installing Homebrew...
remote: Enumerating objects: 127973, done.
remote: Total 127973 (delta 0), reused 0 (delta 0), pack-reused 127973
Receiving objects: 100% (127973/127973), 30.42 MiB | 4.88 MiB/s, done.
Resolving deltas: 100% (93909/93909), done.
From https://github.com/Homebrew/brew
* [new branch] master -> origin/master
* [new tag] 0.1 -> 0.1
* [new tag] 0.2 -> 0.2
* [new tag] 0.3 -> 0.3
* [new tag] 0.4 -> 0.4
* [new tag] 0.5 -> 0.5
* [new tag] 0.6 -> 0.6
* [new tag] 0.7 -> 0.7
* [new tag] 0.7.1 -> 0.7.1
* [new tag] 0.8 -> 0.8
* [new tag] 0.8.1 -> 0.8.1
* [new tag] 0.9 -> 0.9
* [new tag] 0.9.1 -> 0.9.1
* [new tag] 0.9.2 -> 0.9.2
* [new tag] 0.9.3 -> 0.9.3
* [new tag] 0.9.4 -> 0.9.4
* [new tag] 0.9.5 -> 0.9.5
* [new tag] 0.9.8 -> 0.9.8
* [new tag] 0.9.9 -> 0.9.9
* [new tag] 1.0.0 -> 1.0.0
* [new tag] 1.0.1 -> 1.0.1
* [new tag] 1.0.2 -> 1.0.2
* [new tag] 1.0.3 -> 1.0.3
* [new tag] 1.0.4 -> 1.0.4
* [new tag] 1.0.5 -> 1.0.5
* [new tag] 1.0.6 -> 1.0.6
* [new tag] 1.0.7 -> 1.0.7
* [new tag] 1.0.8 -> 1.0.8
* [new tag] 1.0.9 -> 1.0.9
* [new tag] 1.1.0 -> 1.1.0
* [new tag] 1.1.1 -> 1.1.1
* [new tag] 1.1.10 -> 1.1.10
* [new tag] 1.1.11 -> 1.1.11
* [new tag] 1.1.12 -> 1.1.12
* [new tag] 1.1.13 -> 1.1.13
* [new tag] 1.1.2 -> 1.1.2
* [new tag] 1.1.3 -> 1.1.3
* [new tag] 1.1.4 -> 1.1.4
* [new tag] 1.1.5 -> 1.1.5
* [new tag] 1.1.6 -> 1.1.6
* [new tag] 1.1.7 -> 1.1.7
* [new tag] 1.1.8 -> 1.1.8
* [new tag] 1.1.9 -> 1.1.9
* [new tag] 1.2.0 -> 1.2.0
* [new tag] 1.2.1 -> 1.2.1
* [new tag] 1.2.2 -> 1.2.2
* [new tag] 1.2.3 -> 1.2.3
* [new tag] 1.2.4 -> 1.2.4
* [new tag] 1.2.5 -> 1.2.5
* [new tag] 1.2.6 -> 1.2.6
* [new tag] 1.3.0 -> 1.3.0
* [new tag] 1.3.1 -> 1.3.1
* [new tag] 1.3.2 -> 1.3.2
* [new tag] 1.3.3 -> 1.3.3
* [new tag] 1.3.4 -> 1.3.4
* [new tag] 1.3.5 -> 1.3.5
* [new tag] 1.3.6 -> 1.3.6
* [new tag] 1.3.7 -> 1.3.7
* [new tag] 1.3.8 -> 1.3.8
* [new tag] 1.3.9 -> 1.3.9
* [new tag] 1.4.0 -> 1.4.0
* [new tag] 1.4.1 -> 1.4.1
* [new tag] 1.4.2 -> 1.4.2
* [new tag] 1.4.3 -> 1.4.3
* [new tag] 1.5.0 -> 1.5.0
* [new tag] 1.5.1 -> 1.5.1
* [new tag] 1.5.10 -> 1.5.10
* [new tag] 1.5.11 -> 1.5.11
* [new tag] 1.5.12 -> 1.5.12
* [new tag] 1.5.13 -> 1.5.13
* [new tag] 1.5.14 -> 1.5.14
* [new tag] 1.5.2 -> 1.5.2
* [new tag] 1.5.3 -> 1.5.3
* [new tag] 1.5.4 -> 1.5.4
* [new tag] 1.5.5 -> 1.5.5
* [new tag] 1.5.6 -> 1.5.6
* [new tag] 1.5.7 -> 1.5.7
* [new tag] 1.5.8 -> 1.5.8
* [new tag] 1.5.9 -> 1.5.9
* [new tag] 1.6.0 -> 1.6.0
* [new tag] 1.6.1 -> 1.6.1
* [new tag] 1.6.10 -> 1.6.10
* [new tag] 1.6.11 -> 1.6.11
* [new tag] 1.6.12 -> 1.6.12
* [new tag] 1.6.13 -> 1.6.13
* [new tag] 1.6.14 -> 1.6.14
* [new tag] 1.6.15 -> 1.6.15
* [new tag] 1.6.16 -> 1.6.16
* [new tag] 1.6.17 -> 1.6.17
* [new tag] 1.6.2 -> 1.6.2
* [new tag] 1.6.3 -> 1.6.3
* [new tag] 1.6.4 -> 1.6.4
* [new tag] 1.6.5 -> 1.6.5
* [new tag] 1.6.6 -> 1.6.6
* [new tag] 1.6.7 -> 1.6.7
* [new tag] 1.6.8 -> 1.6.8
* [new tag] 1.6.9 -> 1.6.9
* [new tag] 1.7.0 -> 1.7.0
* [new tag] 1.7.1 -> 1.7.1
* [new tag] 1.7.2 -> 1.7.2
* [new tag] 1.7.3 -> 1.7.3
* [new tag] 1.7.4 -> 1.7.4
* [new tag] 1.7.5 -> 1.7.5
* [new tag] 1.7.6 -> 1.7.6
* [new tag] 1.7.7 -> 1.7.7
* [new tag] 1.8.0 -> 1.8.0
* [new tag] 1.8.1 -> 1.8.1
* [new tag] 1.8.2 -> 1.8.2
* [new tag] 1.8.3 -> 1.8.3
* [new tag] 1.8.4 -> 1.8.4
* [new tag] 1.8.5 -> 1.8.5
* [new tag] 1.8.6 -> 1.8.6
* [new tag] 1.9.0 -> 1.9.0
* [new tag] 1.9.1 -> 1.9.1
* [new tag] 1.9.2 -> 1.9.2
* [new tag] 1.9.3 -> 1.9.3
* [new tag] 2.0.0 -> 2.0.0
* [new tag] 2.0.1 -> 2.0.1
* [new tag] 2.0.2 -> 2.0.2
* [new tag] 2.0.3 -> 2.0.3
* [new tag] 2.0.4 -> 2.0.4
* [new tag] 2.0.5 -> 2.0.5
* [new tag] 2.0.6 -> 2.0.6
* [new tag] 2.1.0 -> 2.1.0
* [new tag] 2.1.1 -> 2.1.1
* [new tag] 2.1.10 -> 2.1.10
* [new tag] 2.1.11 -> 2.1.11
* [new tag] 2.1.12 -> 2.1.12
* [new tag] 2.1.13 -> 2.1.13
* [new tag] 2.1.14 -> 2.1.14
* [new tag] 2.1.15 -> 2.1.15
* [new tag] 2.1.2 -> 2.1.2
* [new tag] 2.1.3 -> 2.1.3
* [new tag] 2.1.4 -> 2.1.4
* [new tag] 2.1.5 -> 2.1.5
* [new tag] 2.1.6 -> 2.1.6
* [new tag] 2.1.7 -> 2.1.7
* [new tag] 2.1.8 -> 2.1.8
* [new tag] 2.1.9 -> 2.1.9
HEAD is now at 2963bbec9 Merge pull request #6647 from tommyang/bump-revision-zsh-completion
Failed during: /usr/local/bin/brew update --force
[Kents-MacBook-Pro:/usr/local/bin] Kenny% brew update --force
brew: Command not found.
答案 0 :(得分：0)
结果证明这只能是csh的怪癖。我怀疑其他人是否会如此愚蠢，以至于陷入类似的混乱之中，但以防万一，这是我如何解决的问题：
bash的情况下进行引导是不可能的，这是如果正常引导 的情况。但是，恢复模式在HDD上使用了一个完全独立的（隐藏）分区，因此，它仍包含bash 3.2的闪亮，完美工作的副本。bash二进制文件复制到主分区（cp /bin/bash /Volumes/<your volume name here, usually Macintosh HD by default>/bin/bash）。请记住，请使用\来转义路径名中的所有空格，在我的情况下，cp /bin/bash /Volumes/Mac\ OS\ X\ HD/bin/bash使用完整命令。bash是您的默认Shell（chsh -s /bin/bash）。