Quick bash script to sequentially download AWS Lambda functions linked to the current AWS profile. Relies on the output format being in JSON.

download-lambdas.sh

# !/bin/sh

## List the names of all Lambda functions. Can be constrained by using --max-items
for i in `aws lambda list-functions | grep FunctionName | cut -d ":" -f2 | cut -d '"' -f2`
do
  echo 'Fetching code for function:' $i
  ## Using each name, get the function details and then download the zip file containing the source code.
  aws lambda get-function --function-name $i | grep Location | awk -F' ' '{print $2}' | xargs wget -O $i.zip
  echo 'Code downloaded to' $i.zip
done