title: Terminal-only install error for xcode-select on Sierra
body: <p>Attempts to install command line developer tools with <code>xcode-select --install</code> just returns the following error: 
  <code>xcode-select: note: install requested for command line developer tool</code>
  but when the dialog box asks me to confirm my request, it says it failed due to a network problem.  Obviously I am online, I think the problem is that it isn't properly connecting to the right network.</p>
  
  <p>I have seen in similar threads that on 10.12 Sierra that the command line tools can be installed/updated through the Mac App Store, but after my wireless card and some other components were replaced in my MacBook Pro, I can no longer connect to the App Store (or iCloud and the iTunes or iBooks stores) without getting an error saying my device cannot be verified.  I was told by Apple Support to do an erase-and-reinstall to solve the problem, but that didn't work.</p>
  
  <p>This is why I am trying to find a method to install the command line tools directly from Terminal, one which does not require access to the App Store.  xcode-select --install` worked fine on El Capitan and below, so I hope this feature is still available, even if the command is different.</p>
  
  <p>Can anyone help me out, or point me toward an alternate solution?  If not, I guess I'll have to downgrade.</p>