在不同的路径下，clang之间有什么不同？

Question

我现在在OS X 10.10.4下。

当我运行sudo find / -name "clang" -print时，我得到了输出

/Applications/Android Studio.app/Contents/gradle/gradle-2.8/src/platform-native/org/gradle/nativeplatform/toolchain/internal/clang
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/usr/lib/clang
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/clang
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
/Library/Developer/CommandLineTools/usr/bin/clang
/Library/Developer/CommandLineTools/usr/lib/clang
Library/Developer/CommandLineTools/usr/lib/swift/clang
/System/Library/Frameworks/OpenCL.framework/Versions/A/lib/clang
/Users/yangyy/.vim/bundle/clang_complete/plugin/clang
/Users/yangyy/.vim/bundle/YCM-Generator/fake-toolchain/Unix/clang
/Users/yangyy/.vim/bundle/YouCompleteMe/third_party/ycmd/ycmd/tests/clang
/Users/yangyy/llvm-clang/llvm/tools/clang
/Users/yangyy/llvm-clang/llvm/tools/clang/bindings/python/clang
/Users/yangyy/llvm-clang/llvm/tools/clang/include/clang
/Users/yangyy/llvm-clang/llvm/tools/clang/test/Driver/Inputs/mips_mti_linux/lib/clang
/Users/yangyy/llvm-clang/llvm/tools/clang/tools/extra/test/clang-tidy/Inputs/Headers/clang
/Users/yangyy/llvm-clang/llvm-build/bin/clang
/Users/yangyy/llvm-clang/llvm-build/lib/clang
/Users/yangyy/llvm-clang/llvm-build/lib/cmake/clang
/Users/yangyy/llvm-clang/llvm-build/tools/clang
/Users/yangyy/llvm-clang/llvm-build/tools/clang/CMakeFiles/Export/lib/cmake/clang
/Users/yangyy/llvm-clang/llvm-build/tools/clang/include/clang
/Users/yangyy/llvm-clang/llvm-build/tools/clang/lib/cmake/clang
/usr/bin/clang
/usr/local/Library/ENV/4.3/clang

然后我做了which clang

/usr/bin/clang

为了检查它们是否相同，我检查了Xcode中的版本和默认的版本，发现它们完全相同。

/usr/bin/clang --version
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.4.0
Thread model: posix
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --version
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.4.0
Thread model: posix

• clang**s？：，，有什么区别？(我怀疑它们实际上是一样的。)除了默认的一个之外，我应该全部删除吗？**

提前谢谢。

编辑

我从苹果那里发现了一些有用的东西。似乎有人和我遇到了同样的情况，但我不太明白他们讨论的原因和解决办法。

Answer 1

要知道某些clang是否是指向另一些的符号链接，您可以尝试以下命令：

find / -name clang +exec file {} + 2> /dev/null