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安装docker

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curl -sSL https://get.docker.com/ | bash -x

卸载docker

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sudo apt-get purge docker-ce
sudo apt-get autoremove --purge docker-ce
rm -rf /var/lib/docker
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搭建私有云同步服务。

nextCloud由ownCloud团队开发，相比其他云服务，使用php编写，支持服务端加密存贮，支持多客户端，ui美观，功能完善，安装使用起来也很方便。

可以docker搭建，也可以手动lnmp下搭建。这里介绍lnmp下搭建步骤。

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报错如下

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➜  jekyll-jacman git:(master) brew upgrade ruby
Updating Homebrew...
==> Homebrew has enabled anonymous aggregate user behaviour analytics.
Read the analytics documentation (and how to opt-out) here:
  https://docs.brew.sh/Analytics

xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Error: Failure while executing: git config --local --replace-all homebrew.analyticsmessage true
==> Upgrading 1 outdated package, with result:
ruby 2.5.1
==> Upgrading ruby
==> Installing dependencies for ruby: openssl
==> Installing ruby dependency: openssl
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Error: Failure while executing: git config --local --replace-all homebrew.private true
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