check_strings

Project Notes

Utility to check values of strings on a web page. Usefull for a lot of stuff. (any kind of sensor /application that reports it’s status on a web page)

The value and the string must be on the same row, like this:

Temperature 25.29°C
Relative Humidity 28%
Air Flow 29
Light Level 1
Sound Level 77
IO-1 99
IO-2 99
IO-3 99

Usage for extracting temperature:
/usr/lib64/nagios/plugins/check_string -H -s “Temperature” -w 20 -c 30
WARNING Temperature 25 | Temperature=25;20;30

/usr/lib64/nagios/plugins/check_string -H 10.160.198.130 -s “Relative Humidity” -w 30 -c 40
OK Relative Humidity 29 | Relative Humidity=29;30;40

Seeing it in action:

define command {
command_name check_string
command_line $USER1$/check_string -H $HOSTADDRESS$ -s $ARG1$ -w $ARG2$ -c $ARG3$
register 1
}

check_command check_string!”Relative Humidity”!40!50