AWS CLI

EC2 Link to heading

aws ec2 start-instances --instance-ids <instance id>
aws ec2 reboot-instances --instance-ids <instance id>
aws ec2 stop-instances --instance-ids <instance id>

S3 Link to heading

aws s3 ls  
aws s3 sync <old_s3_uri> <new_s3_uri>  
aws s3 rm <s3_uri> # add --recursive to avoid being prompted for confirmation for every file
aws s3 rm s3://some-bucket-name/ --recursive --exclude "*" --include "*.json" --dryrun  # delete all JSON files from a bucket

VPC Link to heading

List all assigned IPs in subnet subnet-abcxyz

aws ec2 describe-network-interfaces --filters "Name=subnet-id,Values=subnet-abcxyz" --query 'NetworkInterfaces[*].PrivateIpAddress'