程序终止后几秒钟后重新启动

Question

I am maintaining ac/c++ program under linux, which will change BIOS settings and reboot to enable new settings.

Now test teams need to verify exit status, but the program will reboot right now after termination, so their script doesn't have enough time to record the status.

I have try system("shutdown -r -t 1") , but it will wait for 1 minute.I just need few seconds delay time but shutdown has no option for it.

Are there other methods( besides at or cron ) to implement a few seconds reboot delay time after program termination?

Answer 1

You can try next line:

system("nohup  bash -c 'sleep 10; shutdown -r -t now' > /tmp/shutdown.log&");

This with return inmedialty your program and after 10 seconds will invoke the sutdown