getInstanceId.sh

aws ec2 describe-instances --filter "Name=instance-state-name,Values=running" | jq '.Reservations[].Instances[].InstanceId'

# filter tag name
aws ec2 describe-instances --filter "Name=tag-key,Values=Name" "Name=tag-value,Values=dev-hoge" | jq '.Reservations[].Instances[].InstanceId'

# or
aws ec2 describe-instances --filter "Name=tag-key,Values=Name" "Name=tag-value,Values=dev-hoge,verification-hoge" | jq '.Reservations[].Instances[].InstanceId'

# get name in Tags
aws ec2 describe-instances --filter "Name=tag-key,Values=Group" "Name=tag-value,Values=hoge-fuga" | jq '.Reservations[].Instances[].Tags[] | select(.Key == "Name") | .Value'