function kctx()

gistfile1.txt

function kctx() {
  _die() {
    printf '%s\n' "$1" >&2
    return 1
  }

  context="$1"
  context_config_dir="$HOME/.kube/ctxcfg"

  if [ -f "${context_config_dir}/${context}" ] ; then
    export KUBECONFIG="${context_config_dir}/${context}"
  else
    echo "Specify a context: kctx <context>"
    ls -1 $context_config_dir
    _die "${context} not found in ${context_config_dir}" 
  fi
}