how to set default device in iOS simulator from command line

ios jenkins command-line ios-simulator xcode6.1

You can use xcrun to open your device

xcrun instruments -w "iPhone 6 (8.4 Simulator)"

If you want to know all devices installed

xcrun instruments -s

If you need to build and install some app use.

xcodebuild -sdk iphonesimulator8.4 -arch i386 install DSTROOT=~/YourAppxcrun simctl install booted ~/YourApp/Applications/YourApp.app

ios jenkins command-line ios-simulator xcode6.1

You can choose the device that is booted when the simulator launches by passing it on the command line. See Xcode 6 - Launch simulator from command line

ios jenkins command-line ios-simulator xcode6.1

Yes as mentioned this is a duplicate.

But to answer your question,

You can use the instruments to launch the simulator of your choice. For Ex:

xcrun instruments -w "iPhone 6 (8.2 Simulator)"

"From the screen shot it seems like you are already on iOS 8. "

CodeHunter