实际上没有git export的命令，有也可能是第三方的。
那么这里有个git archive可以用作导出。

git archive [--format=<fmt>] [--list] [--prefix=<prefix>/] [<extra>]
	      [-o <file> | --output=<file>] [--worktree-attributes]
	      [--remote=<repo> [--exec=<git-upload-archive>]] <tree-ish>
	      [<path>…​]

in10环境，安装的VMware Workstation Pro，创建了一台Centos7.x的虚拟机。并启用虚拟化。

先安装kubectl

// v1.16.0版本可以从这里查 https://storage.googleapis.com/kubernetes-release/release/stable.txt
curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.16.0/bin/linux/amd64/kubectl
chmod +x ./kubectl
sudo mv ./kubectl /usr/local/bin/kubectl
kubectl version

上述如果在墙内，需要http代理可以，先将代理设为环境变量 export http_proxy=http://ip:port

也可以从github上下载
https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG.md#client-binaries-1
找到Current release如 https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.16.md
再找到Client Binaries如v1.16.0下的 https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.16.md#client-binaries
再找到合适的tar包如 https://dl.k8s.io/v1.16.0/kubernetes-client-linux-amd64.tar.gz

wget https://dl.k8s.io/v1.16.0/kubernetes-client-linux-amd64.tar.gz
tar -zxvf kubernetes-client-linux-amd64.tar.gz
cd kubernetes/client/bin
chmod +x ./kubectl
sudo mv ./kubectl /usr/local/bin/kubectl
kubectl version

The issue is:
When I open pycharm git project, it displays the error:

Cannot Run Git
git: error: unable to locate xcodebuild, please make sure the path to the Xcode folder is set correctly! git: error: You can set the path to the Xcode folder using /usr/bin/xcode-select -switch

And I try git command in the Terminal, it's same error.

There I found the solution on stackoverflow:
Run this command:
sudo xcode-select --switch /Library/Developer/CommandLineTools/

To remove directories, run
git clean -f -d or git clean -fd

To remove ignored files, run
git clean -f -X or git clean -fX

To remove ignored and non-ignored files, run
git clean -f -x or git clean -fx