3. Restart and Run in background

If we have ended a process running in the background, but don't want to restart the background

program, we can restart the Raspberry Pi first of course. However, for saving our time, we can

directly add a symbol "&" behind the running program.

For instance, we need to run the temp_control program in the background:

First of all, enter the target file holder.

cd ~/temp_control

Add a & at the end of the command to indicate it runs in the background.

./temp_control &

Then the system will prompt the PID(1015) of the process.

Press Ctrl+C again. Now we can input other commands in the terminal with the program running

in the background.

FAQ

For any questions, advice or cool ideas to share, please visit the DFRobot Forum

https://wiki.dfrobot.com/Smart_Cooling_Hat_For_Raspberry_Pi_4B_SKU_DFR0672/7-1-22