I have built a microprocessor board which will allow me to log my hydro usage. It involves a photo diode on my hydro meter which counts flashes.
Every 10 minutes I send the kWh out the serial port. Obviously I am power conscious and so I am connecting this to one of my servers which is on anyway.
I am then using minicom to collect the data but it is very hard to look at as one big fat file. What I want to do is have a cron job call a shell script to close the previous days log file and then start up another one for the present day.
So, at say 12:05 am, close off the present minicom log file and start a new file using the new date as the file name.
So, I will have one file per day.
I did figure out how to start minicom and start logging with a file name made from the present date.
Here is my script so far:
# By -sdr- 14/08/2011
# Revision 1.0 14/08/2011
# Make script crontab friendly:
cd $(dirname $0)
# datadir is the directory you want podcasts saved to:
# start minicom with file name of todays date
minicom -C $datadir.txt
What I don't know how to do is cleanly close the log file and shut down minicom.
Any help is greatly appreciated.
Thank you - Steve