Выполнение скриптов при создании и удалении объектов

#!/bin/bash
#
# Use this script as the custom one
# to check or test arguments configuration file.

i=0
echo "Script got the following args:"
for arg in $*
do
  i=$((i + 1))
  echo -ne $arg >> /opt/saymon-extensions/entity-triggers-path/myselect/output; echo -ne " " >> /opt/saymon-extensions/entity-triggers-path/myselect/output
done

if [ $i = 0 ]
then
  echo "(no args)" >> /opt/saymon-extensions/entity-triggers-path/myselect/output
  exit 2
fi

{
    "title": "Custom script example",
    "args": [
        {
            "name": "Unnamed (positional) arg"
        },
        {
            "name": "Named arg",
            "id": "--name"
        },
        {
            "name": "Behold the description on the right",
            "description": "Here I am!",
            "id": "--description"
        },
        {
            "name": "Arg with defaul value",
            "description": "and description",
            "id": "--defval",
            "default": "default_value"
        },
        {
            "name": "Required arg",
            "description": "This field is required to fill in",
            "id": "--required",
            "required": true
        },
        {
            "name": "Type - Text",
            "description": "This and all above fields have got text type",
            "id": "--text",
            "type": "text"
        },
        {
            "name": "Type - Text Area",
            "description": "This field is text area. \nIt is resizable in most browsers. \nAnd allows to enter multiline texts.",
            "id": "--textarea",
            "type": "textarea"
        },
        {
            "name": "Type - Checkbox",
            "description": "This is the checkbox type",
            "id": "--checkbox",
            "type": "checkbox"
        },
        {
            "name": "Type - Password",
            "description": "This is the password field",
            "id": "--pass",
            "default": "qwerty",
            "type": "password"
        },
        {
            "name": "Type - Select",
            "description": "This is the select type. This description is not displayed in the web interface. Use description for each option instead.",
            "id": "--select",
            "default": "option2",
            "type": "select",
            "options": [
                {
                    "description": "== Not selected =="
                },
                {
                    "value": "option1", "description": "OK"
                },
                {
                    "description": "== Divider =="
                },
                {
                    "value": "option2", "description": "Warning"
                },
                {
                    "value": "option3", "description": "Error"
                }
            ]
        }
    ]
}