# Shell Scripting Code Samples

Use the shell scripting code samples below to quickly get started developing with the Rev AI APIs.

## Calculate the average confidence score of a transcript

The following example demonstrates how to calculate the average confidence score of a transcript.

To use this example, replace the `<FILEPATH>` placeholder with the path to the transcript file (in JSON format).


```bash
cat <FILEPATH> | jq '.monologues[].elements[].confidence' | grep -v "null" | awk '{sum+=$1} END {print "Average = ",sum/NR}'
```