You may supply/add --context and --namespace options to your kubectl command to run kubectl against any cluster. Is is handy if you work with multiple clusters back and forth at the same time.

kubectl --cluster=my_cluster --namespace=my_namespace get pods

Note: Please change cluster & namespace names for your environment.

Here are more kubectl options:

~/git/kubernetes (master) $ kubectl options
The following options can be passed to any command:

  --alsologtostderr=false: log to standard error as well as files
  --as='': Username to impersonate for the operation
  --as-group=[]: Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
  --cache-dir='/Users/robertrt/.kube/http-cache': Default HTTP cache directory
  --certificate-authority='': Path to a cert file for the certificate authority
  --client-certificate='': Path to a client certificate file for TLS
  --client-key='': Path to a client key file for TLS
  --cluster='': The name of the kubeconfig cluster to use
  --context='': The name of the kubeconfig context to use
  --insecure-skip-tls-verify=false: If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
  --kubeconfig='': Path to the kubeconfig file to use for CLI requests.
  --log-backtrace-at=:0: when logging hits line file:N, emit a stack trace
  --log-dir='': If non-empty, write log files in this directory
  --log-flush-frequency=5s: Maximum number of seconds between log flushes
  --logtostderr=true: log to standard error instead of files
  --match-server-version=false: Require server version to match client version
-n, --namespace='': If present, the namespace scope for this CLI request
  --request-timeout='0': The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests.
-s, --server='': The address and port of the Kubernetes API server
  --stderrthreshold=2: logs at or above this threshold go to stderr
  --token='': Bearer token for authentication to the API server
  --user='': The name of the kubeconfig user to use
-v, --v=0: log level for V logs
  --vmodule=: comma-separated list of pattern=N settings for file-filtered logging