https://www.macdo.cn/1034.html
修改截图默认文件名
defaults write com.apple.screencapture name "Screenshot"
killall SystemUIServer
更换默认截图路径
defaults write com.apple.screencapture location ~/Desktop/屏幕截图
killall SystemUIServer
去掉窗口截图的阴影
defaults write com.apple.screencapture disable-shadow -bool true
killall SystemUIServer