I want to use a functions shell class in all of my EXE/XML scripts. Some functions are returning and maybe it is useful to handle events or „pushes“ to another shell file, beside PRTG.
Maybe a reset of an value in a database or something like that.
Otherwise it is possible to declare the PRTG XML structure.
With a function you can access this structure via function name.
Article Comments
To write an EXE/XML sensor shell script with a functions class in the same folder or another is easy, but also a bit tricky. PRTG started the scripts not in default „root“ in shell. PRTG launches the shell scripts in "/var/prtg/scripts" & "/var/prtg/scriptsxml".
So we have to tell the script, that it is in a shell.
########Functions##########
my_dir="$(dirname "$0")"
source "$my_dir/includes/functions.sh"
###########End#############
$(dirname „$0“) is a global function for the Folder where the shell file is executed. You can call it "absolute path", similar to (`pwd` /$0).
Now we can link a new file via „source“ to the first one and this will work correctly.
We are able to activate a „functions“ class in an external shell file and include it into the main part of the sensor file.
Example script:
test.sh
#!/bin/bash
my_dir="$(dirname "$0")"
source "$my_dir/includes/functions.sh"
VAL1="TEST1"
VAL2="TEST2"
OUTPUT=$(print_xml ${VAL1} ${VAL2})
echo "<prtg>"
echo $OUTPUT
echo "</prtg>"
functions.sh (in "includes" folder)
function print_xml() {
xmlresult=`cat << EOF
<result>
<channel>$1</channel>
<value>$2</value>
</result>
EOF
`
echo $xmlresult
Structur:
- test.sh
- includes/
- functions.sh
This is an example to write an template for creating the xml code inside PRTG XML sensor list.
This will make your script a bit „slender“ ;).
Best
Sascha
Dec, 2014 - Permalink
To write an EXE/XML sensor shell script with a functions class in the same folder or another is easy, but also a bit tricky. PRTG started the scripts not in default „root“ in shell. PRTG launches the shell scripts in "/var/prtg/scripts" & "/var/prtg/scriptsxml". So we have to tell the script, that it is in a shell.
$(dirname „$0“) is a global function for the Folder where the shell file is executed. You can call it "absolute path", similar to (`pwd` /$0). Now we can link a new file via „source“ to the first one and this will work correctly.
We are able to activate a „functions“ class in an external shell file and include it into the main part of the sensor file.
Example script:
test.sh
#!/bin/bash my_dir="$(dirname "$0")" source "$my_dir/includes/functions.sh" VAL1="TEST1" VAL2="TEST2" OUTPUT=$(print_xml ${VAL1} ${VAL2}) echo "<prtg>" echo $OUTPUT echo "</prtg>"functions.sh (in "includes" folder)
function print_xml() { xmlresult=`cat << EOF <result> <channel>$1</channel> <value>$2</value> </result> EOF ` echo $xmlresultStructur:
This is an example to write an template for creating the xml code inside PRTG XML sensor list.
This will make your script a bit „slender“ ;).
Best
Sascha
Dec, 2014 - Permalink