为什么我不在命令行上使用git diff？

Question

我在git上阅读的每一篇文档(包括在线书籍和内置帮助)都说我可以从命令行输入"git diff",但每当我这样做时,我得到:

usage: git diff [--no-index] <path> <path>

这是我到目前为止所尝试的内容(都是文档中的示例):

$ git diff
usage: git diff [--no-index] <path> <path>

$ git diff HEAD
usage: git diff [--no-index] <path> <path>

$ git diff --
usage: git diff [--no-index] <path> <path>

$ git diff -- .
usage: git diff [--no-index] <path> <path>

$ git diff --stat
usage: git diff [--no-index] <path> <path>

$ git --version
git version 1.7.1

我在这里错过了什么吗？

Answer 1

当你运行这些时,你真的在​​一个带有Git存储库的目录中吗？(git rev-parse --git-dir)该命令需要能够找到存储库并确定您的工作树是什么,以便产生有用的输出.否则(如果无法识别存储库),它默认为普通的recursive-diff命令,并且需要两个路径来操作.