I would go insane if I did’t wire-up tab completion for the aws CLI. There are just too many commands to remember. To do that, I dropped this line in my .awsrc:
complete -C aws_completer aws
So now when I type aws <tab>, I get a list of possible commands, like this:
~ $ aws <tab>
autoscaling ec2 rds
cloudformation ecs redshift
cloudhsm elasticache route53
cloudsearch elasticbeanstalk route53domains
cloudsearchdomain elastictranscoder s3
cloudtrail elb s3api
cloudwatch emr ses
cognito-identity glacier sns
cognito-sync iam sqs
configservice importexport storagegateway
configure kinesis sts
datapipeline kms support
deploy lambda swf
directconnect logs
dynamodb opsworks
And similarly for a subcommand like aws elasticbeanstalk describe-<tab>:
$ aws elasticbeanstalk describe-<tab>
describe-application-versions describe-environment-resources
describe-applications describe-environments
describe-configuration-options describe-events
describe-configuration-settings