John Minton,
This looks really helpful. Also I was thinking about making an icon on
the Desktop to run a bash script, probably something very easy but I am
very ignorant of bash and Linux, so will have to study up on cron and
bash, and here I thought all I had to learn was Python and Tkinter and
Beaglebone I/O. :-)
Thanks,
John
On 4/14/2016 11:48 AM, [email protected] wrote:
I was also looking to run my python script on boot so I did a couple
things that worked as a a short term solution. I added 2 lines to my
crontab, an @reboot line to run the program when the device starts up
as well as a bash script to ensure the program is still running.
(Replace main.py with your program name and make sure it doesn't match
anything else that may be running)
crontab -e
# Runs when the system boots:
@reboot sudo python /path/to/program.py
# Runs every minute and checks that your program is running:
* * * * * sudo bash /path/to/check_process.bash
(Just a note, if you need multiple programs to run on boot, replace
"@reboot sudo python /path/to/program.py" with a bash script, and
place the things you need to run on boot in that bash file.)
check_process.bash:
#!/bin/bash
process_id=`ps aux | grep "YOURPROGRAM.py" | grep -v "grep"`;
if [ -z "$process_id" ]; then
echo "process not running for certain."
cd /PATH/TO
cd /PATH/TO/YOURPROGRAM.py &
else
echo "YOURPROGRAM.py seems to be running";
fi
The only down side is that if your program crashes, you have to wait
up to a minute for the crontab to run the check_processes.bash, but
otherwise is pretty solid.
Now I am also looking for how to run my script as a system service.
On Thursday, April 7, 2016 at 9:18:43 PM UTC-7, John Baker wrote:
My program runs fine but requires that I use putty.exe and type
sudo python myprog.py to run it. I have been reading about
systemctl and have written a service file and put it in
/lib/systemd/system. It's called paint-flow.service, listing
below. I have.. enabled it with systemctl enable
paint-flow.service with no errors and tried systemctl start
paint-flow.service with no errors but my program doesn't seem to
start. When I check the status I get "code=exited, status =
203/EXEC" which doesn't tell me anything, at least nothing that I
understand.
Also I tried the same thing with a one-line Hello.py program and
same results.
Any help with this newbie problem, please?
[Unit]
Description=Paint flow control program
[Service]
WorkingDirectory=/home/debian/Desktop/
ExecStart=/home/debian/Desktop/python SimB.py
SyslogIdentifier=SimB
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.targetI am using Debian 3.8.13
John
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