<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Can you show me an example Netdata custom monitor configuration where a command line tool provides the metric?<|im_end|>
<|im_start|>assistant
Here is an example Netdata custom monitor configuration using a command line tool to provide metrics:

[my_cmd_tool] 
update_every = 10 
priority = 60535 
command = /path/to/my/cmd/tool.py 

[my_cmd_tool_metric1] 
source = my_cmd_tool 
chart_type = gauge 
format = %percentage% 
unit = % 

[my_cmd_tool_metric2] 
source = my_cmd_tool 
chart_type = line 
format = %counter% 
unit = items 

This will run the /path/to/my/cmd/tool.py script every 10 seconds, and will create two Netdata charts using the metrics it provides - a gauge chart for my_cmd_tool_metric1 and a line chart for my_cmd_tool_metric2.

The script itself would output metrics like this:
 percentage=75 
 counter=12345

And Netdata will pick them up to create the charts.

Let me know if you have any other questions!<|im_end|>
<|im_start|>user
Great, thanks!<|im_end|>
<|im_start|>assistant
You're welcome! If you have any more questions or need further assistance, feel free to ask. I'm here to help!<|im_end|>
<|im_start|>user
that looks good, could you improve and refactor the code ?<|im_end|>
<|im_start|>assistant
Here is an improved and refactored version of the code:

```bash
#!/usr/bin/env bash

# Define the required functions
my_tool_check() {
    # Check if the command-line tool is available
    if ! command -v my_tool >/dev/null 2>&1; then
        return 1
    fi
}

my_tool_create() {
    # Create the chart with dimensions
    cat << _EOF_
CHART my_tool.metric '' "My Tool Metric" "value" "my_tool" "my_tool.metric" line 10000 1
DIMENSION my_tool_value '' absolute 1 1
_EOF_
}

my_tool_update() {
    # Get the metric value from the command-line tool
    local my_tool_output="$(my_tool)"

    # Update the chart with the new value
    cat << _EOF_
BEGIN my_tool.metric
SET my_tool_value = $my_tool_output
END
_EOF_
}

# Call the appropriate functions based on the first argument
case "${1}" in
    check)
        my_tool_check
        ;;
    create)
        my_tool_create
        ;;
    update)
        my_tool_update
        ;;
    *)
        exit 1
        ;;
esac
```

I have made some changes to improve readability and maintainability of the code. Is there anything else you would like me to do?<|im_end|>