Output of helm version:
version.BuildInfo{Version:"v3.0.0", GitCommit:"e29ce2a54e96cd02ccfce88bee4f58bb6e2a28b6", GitTreeState:"clean", GoVersion:"go1.13.4"}

Output of kubectl version:
Client Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.0", GitCommit:"0ed33881dc4355495f623c6f22e7dd0b7632b7c0", GitTreeState:"clean", BuildDate:"2018-09-28T15:20:58Z", GoVersion:"go1.11", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"16", GitVersion:"v1.16.2", GitCommit:"c97fe5036ef3df2967d086711e6c0c405941e14b", GitTreeState:"clean", BuildDate:"2019-10-15T19:09:08Z", GoVersion:"go1.12.10", Compiler:"gc", Platform:"linux/amd64"}

Cloud Provider/Platform (AKS, GKE, Minikube etc.):
Kubeadm install on Centos 7.

On my mac 10.13.6, tried installing help using brew, then using binary. Also, tried the binary install on a Linux client. Helm init gives the same response on all, as if the 'init' is unrecognised.

$ helm init
The Kubernetes package manager

Common actions for Helm:

• helm search: search for charts
• helm pull: download a chart to your local directory to view
• helm install: upload the chart to Kubernetes
• helm list: list releases of charts

Environment variables:

+------------------+-----------------------------------------------------------------------------+
| Name | Description |
+------------------+-----------------------------------------------------------------------------+
| $XDG_CACHE_HOME | set an alternative location for storing cached files. |
| $XDG_CONFIG_HOME | set an alternative location for storing Helm configuration. |
| $XDG_DATA_HOME | set an alternative location for storing Helm data. |
| $HELM_DRIVER | set the backend storage driver. Values are: configmap, secret, memory |
| $HELM_NO_PLUGINS | disable plugins. Set HELM_NO_PLUGINS=1 to disable plugins. |
| $KUBECONFIG | set an alternative Kubernetes configuration file (default "~/.kube/config") |
+------------------+-----------------------------------------------------------------------------+

Helm stores configuration based on the XDG base directory specification, so

• cached files are stored in $XDG_CACHE_HOME/helm
• configuration is stored in $XDG_CONFIG_HOME/helm
• data is stored in $XDG_DATA_HOME/helm

By default, the default directories depend on the Operating System. The defaults are listed below:

+------------------+---------------------------+--------------------------------+-------------------------+
| Operating System | Cache Path | Configuration Path | Data Path |
+------------------+---------------------------+--------------------------------+-------------------------+
| Linux | $HOME/.cache/helm | $HOME/.config/helm | $HOME/.local/share/helm |
| macOS | $HOME/Library/Caches/helm | $HOME/Library/Preferences/helm | $HOME/Library/helm |
| Windows | %TEMP%\helm | %APPDATA%\helm | %APPDATA%\helm |
+------------------+---------------------------+--------------------------------+-------------------------+

Usage:
helm [command]

Available Commands:
completion Generate autocompletions script for the specified shell (bash or zsh)
create create a new chart with the given name
dependency manage a chart's dependencies
env Helm client environment information
get download extended information of a named release
help Help about any command
history fetch release history
install install a chart
lint examines a chart for possible issues
list list releases
package package a chart directory into a chart archive
plugin install, list, or uninstall Helm plugins
pull download a chart from a repository and (optionally) unpack it in local directory
repo add, list, remove, update, and index chart repositories
rollback roll back a release to a previous revision
search search for a keyword in charts
show show information of a chart
status displays the status of the named release
template locally render templates
test run tests for a release
uninstall uninstall a release
upgrade upgrade a release
verify verify that a chart at the given path has been signed and is valid
version print the client version information

Flags:
--add-dir-header If true, adds the file directory to the header
--alsologtostderr log to standard error as well as files
--debug enable verbose output
-h, --help help for helm
--kube-context string name of the kubeconfig context to use
--kubeconfig string path to the kubeconfig file
--log-backtrace-at traceLocation when logging hits line file:N, emit a stack trace (default :0)
--log-dir string If non-empty, write log files in this directory
--log-file string If non-empty, use this log file
--log-file-max-size uint Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
--logtostderr log to standard error instead of files (default true)
-n, --namespace string namespace scope for this request
--registry-config string path to the registry config file (default "/Users/prXX/Library/Preferences/helm/registry.json")
--repository-cache string path to the file containing cached repository indexes (default "/Users/prXX/Library/Caches/helm/repository")
--repository-config string path to the file containing repository names and URLs (default "/Users/prXX/Library/Preferences/helm/repositories.yaml")
--skip-headers If true, avoid header prefixes in the log messages
--skip-log-headers If true, avoid headers when opening log files
--stderrthreshold severity logs at or above this threshold go to stderr (default 2)
-v, --v Level number for the log level verbosity
--vmodule moduleSpec comma-separated list of pattern=N settings for file-filtered logging

Use "helm [command] --help" for more information about a command.