Get All AWS Lambda runtimes in CSV format for easy sorting and filtering . Optional argument is a list of profiles to query. Only $LATEST versions are captured. Requires all AWS profiles be active (tough to do for sso), or at least any that are listed on the command line if provided. Needs AWS CLI 2.x and jq.

get_runtimes.sh

#!/bin/bash
profiles="$@"
if [ -z "$profiles" ]; then
   profiles="$(aws configure list-profiles)"
else
   echo "Restricting run to these profiles $profiles"
fi
results_folder=results
mkdir -p $results_folder
regions="us-east-1"
csv=$results_folder/all_functions.csv
if [ ! -f $csv ]; then
   echo "Profile,Account,Region,Runtime,FunctionName" > $csv
fi
for profile in $profiles; do
   for region in $regions; do
      printf "Getting functions in $region for $profile profile..."
      output=$results_folder/functions_${profile}_$region.json
      if [ -f $output ]; then
         echo "cached."
      else
         aws --profile $profile lambda list-functions \
            --region $region > $output
         if [ $? -ne 0 ]; then
            echo
            echo "An Error occurred in the above statement"
            rm $output
         else
            echo "done"
            cat $output | jq --arg profile "$profile" -r '.Functions[] | .FunctionArn |= . / ":" | [$profile,.FunctionArn[4], .FunctionArn[3],.Runtime,.FunctionName] | @csv ' >> $csv
         fi
      fi
   done
done
echo "See CSV summary in $csv"