Update cheatsheets

cf

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# cf
+
+> Manage apps and services on Cloud Foundry.
+> More information: <https://docs.cloudfoundry.org>.
+
+- Log in to the Cloud Foundry API:
+
+`cf login -a {{api_url}}`
+
+- Push an app using the default settings:
+
+`cf push {{app_name}}`
+
+- View the services available from your organization:
+
+`cf marketplace`
+
+- Create a service instance:
+
+`cf create-service {{service}} {{plan}} {{service_name}}`
+
+- Connect an application to a service:
+
+`cf bind-service {{app_name}} {{service_name}}`
+
+- Run a script whose code is included in the app, but runs independently:
+
+`cf run-task {{app_name}} "{{script_command}}" --name {{task_name}}`
+
+- Start an interactive SSH session with a VM hosting an app:
+
+`cf ssh {{app_name}}`
+
+- View a dump of recent app logs:
+
+`cf logs {{app_name}} --recent`