Ionic@beta Installation --verbose output shows ok. but ionic@beta not installed yet

When I give the command for installing the ionic@beta
npm i -g --verbose ionic@beta

I get the following reply in the cmd:

C:\Users\thinkdigitalGST>npm i -g --verbose ionic@beta npm info it worked if it ends with ok npm verb cli [ 'C:\\Program Files\\nodejs\\node.exe', npm verb cli 'C:\\Users\\thinkdigitalGST\\npm\\node_modules\\npm\\bin\\npm-cli.js', npm verb cli 'i', npm verb cli '-g', npm verb cli '--verbose', npm verb cli 'ionic@beta' ] npm info using npm@3.9.0 npm info using node@v5.11.0 npm verb request uri https://registry.npmjs.org/ionic npm verb request no auth needed npm info attempt registry request try #1 at 2:29:43 PM npm verb request id 5ce45225f4456541 npm verb etag "B3KI53MOJ2OGQ3XZPTDE0Z1A5" npm http request GET https://registry.npmjs.org/ionic npm http 304 https://registry.npmjs.org/ionic npm verb headers { date: 'Mon, 16 May 2016 08:59:48 GMT', npm verb headers via: '1.1 varnish', npm verb headers 'cache-control': 'max-age=300', npm verb headers etag: '"B3KI53MOJ2OGQ3XZPTDE0Z1A5"', npm verb headers age: '224', npm verb headers connection: 'keep-alive', npm verb headers 'x-served-by': 'cache-ams4138-AMS', npm verb headers 'x-cache': 'HIT', npm verb headers 'x-cache-hits': '1', npm verb headers 'x-timer': 'S1463389188.994969,VS0,VE0', npm verb headers vary: 'Accept-Encoding' } npm verb etag https://registry.npmjs.org/ionic from cache npm verb get saving ionic to C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\registry.npmjs.org\ionic\.cache.json npm verb correctMkdir C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache correctMkdir not in flight; initializing npm verb cache add spec ionic@beta npm verb addNamed "beta" is being treated as a dist-tag for ionic npm info addNameTag [ 'ionic', 'beta' ] npm verb addNameTag registry:https://registry.npmjs.org/ionic not in flight; fetching npm verb request uri https://registry.npmjs.org/ionic npm verb request no auth needed npm info attempt registry request try #1 at 2:30:21 PM npm verb etag "B3KI53MOJ2OGQ3XZPTDE0Z1A5" npm http request GET https://registry.npmjs.org/ionic npm http 304 https://registry.npmjs.org/ionic npm verb headers { date: 'Mon, 16 May 2016 09:00:25 GMT', npm verb headers via: '1.1 varnish', npm verb headers 'cache-control': 'max-age=300', npm verb headers etag: '"B3KI53MOJ2OGQ3XZPTDE0Z1A5"', npm verb headers age: '260', npm verb headers connection: 'keep-alive', npm verb headers 'x-served-by': 'cache-ams4138-AMS', npm verb headers 'x-cache': 'HIT', npm verb headers 'x-cache-hits': '2', npm verb headers 'x-timer': 'S1463389225.102092,VS0,VE0', npm verb headers vary: 'Accept-Encoding' } npm verb etag https://registry.npmjs.org/ionic from cache npm verb get saving ionic to C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\registry.npmjs.org\ionic\.cache.json npm verb correctMkdir C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache correctMkdir not in flight; initializing npm verb addNamed "2.0.0-beta.25" is a plain semver version for ionic npm verb addRemoteTarball https://registry.npmjs.org/ionic/-/ionic-2.0.0-beta.25.tgz not in flight; adding npm verb addRemoteTarball [ 'https://registry.npmjs.org/ionic/-/ionic-2.0.0-beta.25.tgz', npm verb addRemoteTarball '0184b9f610b8c52e72bfa287eebcdde08a1443be' ] npm info retry fetch attempt 1 at 2:30:22 PM npm info attempt registry request try #1 at 2:30:22 PM npm http fetch GET https://registry.npmjs.org/ionic/-/ionic-2.0.0-beta.25.tgz npm http fetch 200 https://registry.npmjs.org/ionic/-/ionic-2.0.0-beta.25.tgz npm verb addTmpTarball C:\Users\THINKD~1\AppData\Local\Temp\npm-5468-a502604a\registry.npmjs.org\ionic\-\ionic-2.0.0-beta.25.tgz not in flight; adding npm verb addTmpTarball already have metadata; skipping unpack for ionic@2.0.0-beta.25 npm verb correctMkdir C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache correctMkdir not in flight; initializing npm verb afterAdd C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\ionic\2.0.0-beta.25\package\package.json not in flight; writing npm verb correctMkdir C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache correctMkdir not in flight; initializing npm verb afterAdd C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\ionic\2.0.0-beta.25\package\package.json written npm verb correctMkdir C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache correctMkdir not in flight; initializing npm verb addBundled extract C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\ionic\2.0.0-beta.25\package.tgz npm verb tar unpack C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\ionic\2.0.0-beta.25\package.tgz npm verb tar unpacking to C:\Users\THINKD~1\AppData\Local\Temp\npm-5468-a502604a\unpack-9ea5ad4f npm verb gentlyRm don't care about contents; nuking C:\Users\THINKD~1\AppData\Local\Temp\npm-5468-a502604a\unpack-9ea5ad4f npm verb correctMkdir C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\_locks correctMkdir not in flight; initializing npm verb makeDirectory C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\_locks creation not in flight; initializing npm verb makeCacheDir UID & GID are irrelevant on win32 npm verb lock using C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\_locks\staging-356c471ddde029cf.lock for C:\Users\thinkdigitalGST\npm\node_modules\.staging npm verb unbuild node_modules\.staging\ionic-dd1cc71b npm verb gentlyRm don't care about contents; nuking C:\Users\thinkdigitalGST\npm\node_modules\.staging\ionic-dd1cc71b npm verb tar unpack C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\ionic\2.0.0-beta.25\package.tgz npm verb tar unpacking to C:\Users\thinkdigitalGST\npm\node_modules\.staging\ionic-dd1cc71b npm verb gentlyRm don't care about contents; nuking C:\Users\thinkdigitalGST\npm\node_modules\.staging\ionic-dd1cc71b npm verb gentlyRm don't care about contents; nuking C:\Users\thinkdigitalGST\npm\node_modules\.staging\ionic-dd1cc71b\node_modules npm info lifecycle ionic@2.0.0-beta.25~preinstall: ionic@2.0.0-beta.25 npm info linkStuff ionic@2.0.0-beta.25 npm verb linkBins ionic@2.0.0-beta.25 npm verb link bins [ { ionic: 'bin/ionic' }, npm verb link bins 'C:\\Users\\thinkdigitalGST\\npm', npm verb link bins true ] npm verb linkMans ionic@2.0.0-beta.25 C:\Users\thinkdigitalGST\npm\ionic -> C:\Users\thinkdigitalGST\npm\node_modules\ionic\bin\ionic npm info lifecycle ionic@2.0.0-beta.25~install: ionic@2.0.0-beta.25 npm info lifecycle ionic@2.0.0-beta.25~postinstall: ionic@2.0.0-beta.25 npm verb unlock done using C:\Users\thinkdigitalGST\AppData\Roaming\npm-cache\_locks\staging-356c471ddde029cf.lock for C:\Users\thinkdigitalGST\npm\node_modules\.staging C:\Users\thinkdigitalGST\npm ``-- ionic@2.0.0-beta.25

npm verb exit [ 0, true ]
npm info ok

Does it mean that I have installed Ionic@beta???

Once I give the following command:

ionic -v

It shows me the following:

'ionic' is not recognized as an internal or external command,
operable program or batch file.
`