- #How to make a program run at startup on raspberry pi how to
- #How to make a program run at startup on raspberry pi series
According to one stackoverflow, the exception is because bash actually expands the asterisk to every matching file, producing a very long command line. This will likely throw a ‘Argument list too long’ exception. It’s not as simple as using ‘mv *.*’ when you have a few thousand files. type f -size 0 -print0 -deleteįind /motiontmp/motion/. Sudo mkdir /motiontmp/$TIMESTAMP || logger -s "Error mkdir start"įind /motiontmp/motion/. Logger -s "Script motionStartup $TIMESTAMP" TIMESTAMP=$(date +%Y%m%d%H%M%S | sed 's/ //g') # No spaces # Carry out specific functions when asked to by the system # Description: Move motion files at startup. # Short-Description: Move motion files at startup. sudo nano /etc/init.d/motionStartup.shĬopy the following contents into the script and save it. To create the new script, run the following command. Before copying, the script deletes any zero-byte jpegs, which are images that did not fully process prior to the Raspberry Pi being shut off when the car stopped. The script then copies all files from the ‘motion’ directory to the new timestamped directory.
#How to make a program run at startup on raspberry pi series
The script creates a timestamped folder in new ‘motiontmp’ directory for each series of images and video. Next, create the new shell script that will run at startup to move Motion’s video and images. Target_dir /motiontmp/motion Create the Startup Script to Move Video and Images # Target base directory for pictures and films Note when Motion starts for the first time, it will create the ‘motion’ sub folder inside ‘motiontmp’. To have Motion use this location, we need to modify the Motion configuration file: sudo nano /etc/motion/nfĬhange the following setting (in bold below). Make sure you set the permissions on the new ‘/motiontmp’ directory, so Motion can write to it: sudo chmod -R 777 /motiontmp I chose to create a directory called ‘/motiontmp’. To start, change the default location where Motion stores timelapse video and images, from ‘/tmp/motion/’ to a location outside the ‘/tmp’ directory. Change Motion’s Default Location for Video and Images
#How to make a program run at startup on raspberry pi how to
However, understanding how startup scripts work with Debian’s Init program, making sure the new move script run before Motion starts, and knowing how to move a huge number of files, all required forethought. Configure the Pi’s Debian operating system to run this script at startup (and optionally shutdown), before Motion starts.Create a startup script that will move the video and images to a safe location when restarting the Pi.Change the default location where Motion stores timelapse videos and images to somewhere other than a temporary directory.The process involves the following steps: In this post, I will present a solution to overcome this limitation. To preserve each video segment or series of images, we need a way to preserve the content created by Motion and FFmpeg, before they are overwritten. However, if you are interested in capturing and preserving series of dash-cam videos, such as in the daily commute example above, then the default behavior of Motion is insufficient. When the accident occurs, simply pull the SDHC card from the Raspberry Pi and copy the video and images off to your laptop. If you are only interested in keeping the latest timelapse video in case of an accident, then this may not be a problem. Our daily commute actually encompasses a series small trips, and therefore multiple dash-cam timelapse videos. Our car starts, stops, starts, stops, starts, and stops. Maybe we stop for a morning coffee, or stop at the store on the way home to pick up dinner. Take the average daily commute, we drive to and from work. Each time the car starts, the Raspberry Pi boots up, and Motion begins to run, the previous images and video, stored in the default ‘/tmp/motion/’ directory are removed and new images and video, created. One of the challenges I faced in that post was how to save the timelapse videos and individual images (frames) created by Motion and FFmpeg when the Raspberry Pi is turned on and off. In my last post, Raspberry Pi-Powered Dashboard Video Camera Using Motion and FFmpeg, I demonstrated how the Raspberry Pi can be used as a low-cost dashboard video camera. Use a start-up script to overcome limitations of Motion/FFmpeg and save multiple Raspberry Pi dashboard camera timelapse videos and images, automatically.