如何从OS X的命令行获取当前的屏幕分辨率？

如何从OS X中的命令行获取当前的显示分辨率？

system_profiler SPDisplaysDataType | grep Resolution

快速阅读单个视网膜显示器的当前虚拟分辨率：

$ osascript -e 'tell application "Finder" to get bounds of window of desktop'
0, 0, 2048, 1280

多显示器设置的结果根据主要显示内容和排列方式而有所不同。在这里阅读更多

我使用该实用程序screenresolution来获取屏幕分辨率：

$ /usr/local/bin/screenresolution get 2>&1 | grep -oE 'Display 0: [0-9]+' | grep -Eo '[0-9]+$'  
1920

我写了displayplacer，它可以帮助您。执行displayplacer list，它将显示所有屏幕的当前分辨率（以及更多信息）。

$ displayplacer list
Persistent screen id: A46D2F5E-487B-CC69-C588-ECFD519016E5
Contextual screen id: 1124216237
Type: 40 inch external screen
Resolution: 3840x2160
Hertz: 60
Color Depth: 4
Scaling:off
Origin: (0,0) - main display
Rotation: 0
Resolutions for rotation 0:
  mode 0: res:3840x2160 hz:60 color_depth:4 <-- current mode
  mode 1: res:3840x2160 hz:60 color_depth:8
  mode 2: res:3840x2160 hz:30 color_depth:4
...
Persistent screen id: 2960D639-F605-5BB4-A53D-A3263008894C
Contextual screen id: 69733451
Type: MacBook built in screen
Resolution: 1680x1050
Hertz: N/A
Color Depth: 4
Scaling:on
Origin: (-1680,1291)
Rotation: 0 - rotate internal screen example (may crash computer, but will be rotated after rebooting): `displayplacer "id:2960D639-F605-5BB4-A53D-A3263008894C degree:90"`
Resolutions for rotation 0:
  mode 0: res:1440x900 color_depth:4 scaling:on
  mode 1: res:1440x900 color_depth:8 scaling:on
  mode 2: res:720x450 color_depth:4 scaling:on

grep是解析输出的简单方法。

$ displayplacer list | grep -e Resolution: -e Scaling:
Resolution: 3840x2160
Scaling:off
Resolution: 1680x1050
Scaling:on

也可以通过Homebrew获得 brew tap jakehilborn/jakehilborn && brew install displayplacer