How to get Android system uptime and realtime from command line?

Question

I'm writing a script containing several "adb shell" command. I also want to record the time when program execute these command in a form of realtime and uptime. I know I can get uptime and realtime through SystemClock:

SystemClock.uptimeMillis();
SystemClock.elapsedRealtime();

Is there any way I can get these information from the command line?

Thanks a lot!

Pedicular

Yes. I mean adb shell command. I thought there might be some command that can inquire about system status. I know adb shell sysdump gfxinfo will return the uptime and realtime at the end of its output. What I want is a cleaner one. – Pedicular

Answer 1

Try:

adb shell cat /proc/uptime

Weatherman

Thanks! Diego. The second number matches SystemClock.elapsedRealtime(). One small problem is that the numbers in uptime file is recorded in seconds with two decimal places. It seems that SystemClock.elapsedRealtime() is more accurate because it uses milliseconds. – Pedicular

Is there a way to get use it on a specific device when several are connected to the machine? (error: more than one device and emulator) – Hebetic

Answer 2

If you only need to-the-second accuracy, adb shell uptime will also work. Example output:

up time: 00:09:26, idle time: 00:07:15, sleep time: 00:00:00

Drugi