Difference between revisions of "Run scripts more than once per minute"
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If you run the scripts by cron, the most often frequency is once per minute. | If you run the scripts by cron, the most often frequency is once per minute. | ||
| − | PVLng offers a wrapper script <tt>PVLng-run.sh</tt> to run | + | PVLng offers a wrapper script <tt>PVLng-run.sh</tt> to run commands or other scripts more than once per minute. |
# ./PVLng-run.sh -h | # ./PVLng-run.sh -h | ||
| − | Run command each period seconds for 1 minute. | + | Run command each given period (in seconds) for 1 minute. |
| − | Use in cron with | + | Use in cron with period * for each minute. |
| − | + | usage: ./PVLng-run1.sh [options] -- script arg1 arg2 ... | |
| − | + | options: | |
| − | -p | + | -p, --period Run each ? seconds for 1 minute (runs by default once) [default:60] |
| − | -t | + | -n, --nice Niceness range from -20 (most favorable) to 19 (least favorable) [default:10] |
| − | -v | + | -t, --test Test mode, set verbosity to info level [flag] |
| − | -h | + | -v, --verbose Verbosity, use multiple times for higher level [flag] |
| + | -h, --help This usage help | ||
| + | |||
| + | Don't miss the -- ! | ||
| + | |||
| + | '''Don't forget to divide the real script name and its parameters with the "<tt>--</tt>"''' | ||
I monitor my power consumption and my SMA inverters with the following cron tab entries: | I monitor my power consumption and my SMA inverters with the following cron tab entries: | ||
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# Fetch consumption data each 15s | # Fetch consumption data each 15s | ||
* * * * * ~/PVLng-run.sh -p 15 -- ~/S0/S0.sh -s Consumption.conf | * * * * * ~/PVLng-run.sh -p 15 -- ~/S0/S0.sh -s Consumption.conf | ||
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If you run the wrapper script in verbose test mode, it will show you only what will happen: | If you run the wrapper script in verbose test mode, it will show you only what will happen: | ||
Latest revision as of 16:40, 28 September 2014
If you run the scripts by cron, the most often frequency is once per minute.
PVLng offers a wrapper script PVLng-run.sh to run commands or other scripts more than once per minute.
# ./PVLng-run.sh -h
Run command each given period (in seconds) for 1 minute.
Use in cron with period * for each minute.
usage: ./PVLng-run1.sh [options] -- script arg1 arg2 ...
options:
-p, --period Run each ? seconds for 1 minute (runs by default once) [default:60]
-n, --nice Niceness range from -20 (most favorable) to 19 (least favorable) [default:10]
-t, --test Test mode, set verbosity to info level [flag]
-v, --verbose Verbosity, use multiple times for higher level [flag]
-h, --help This usage help
Don't miss the -- !
Don't forget to divide the real script name and its parameters with the "--"
I monitor my power consumption and my SMA inverters with the following cron tab entries:
# Fetch plant data each 30s, run mostly during daylight times mostly * 4-22 * * * ~/PVLng-run.sh -p 30 -- ~/SMA/Webbox.sh -s Inverters.conf * 4-22 * * * ~/PVLng-run.sh -p 30 -- ~/SMA/Webbox.sh -s Sensorbox.conf # Fetch consumption data each 15s * * * * * ~/PVLng-run.sh -p 15 -- ~/S0/S0.sh -s Consumption.conf
If you run the wrapper script in verbose test mode, it will show you only what will happen:
# ~/PVLng-run.sh -tvp 30 -- ~/SMA/Webbox.sh -s Inverters.conf [19:58:02.550] Period : 30 [19:58:02.554] Command: ~/PVLng-scripts/SMA/Webbox.sh -s Inverters.conf [19:58:02.559] Run, 1 left ... [19:58:02.563] Test mode ... [19:58:32.572] Run, 0 left ... [19:58:32.576] Test mode ...
For more accuracy the wrapper script will spawn the concrete command into background, so it have not to wait for it.
