docker-sync：找不到命令

Question

$ gem install docker-sync

ERROR: While executing gem ... (Errno::EACCES) Permission denied @ rb_sysopen - /usr/local/lib/ruby/gems/2.5.0/gems/docker-sync-0.5.9/Thorfile

$ sudo gem install docker-sync

Successfully installed docker-sync-0.5.9
Parsing documentation for docker-sync-0.5.9
Done installing documentation for docker-sync after 0 seconds
1 gem installed

$ docker-sync
-bash: docker-sync: command not found

我曾尝试在 Mac OSX 10.14.2 上安装 docker-sync，但 bash 从未找到该命令。重启后也不行。我能做什么？

Answer 1

如果只有您的用户（我们称之为user1）需要docker-sync，那么我建议您user1通过运行 (as user1，not root)为用户安装 gem ：

gem install --user-install docker-sync

然后，将docker-sync二进制位置（可能~/.gem/ruby/<ruby_version>/bin）添加到您的PATH：

export PATH=$PATH:~/.gem/ruby/<ruby_version>/bin