Did you alter the token value when you posted here, or is the curl command you've posted exactly what you're submitting? The token you've posted in the above curl command appears to be invalid -- if I submit the same curl command as you've included in your post, I receive a 1002 error (Your Access Token is invalid.).
curl -s https://api.smartsheet.com/2.0/users/me -H "Authorization: Bearer ll352u9jujauoqz4gstvsae05"
{
"errorCode" : 1002,
"message" : "Your Access Token is invalid.",
"refId" : "q7ee6vxts37o"
}
I'd suggest that you do the following:
Using the Smartsheet UI, revoke the token that you reference in the curl command within your post. Also, FYI -- you should never share your token in a public forum (e.g., posting here in Stack Overflow or anywhere else where others will see it) -- b/c anyone can use your token via API to read/edit/delete any Smartsheet data you've got access to.
Create a new token, and try the curl command again using the new token. If I cc/paste your exact curl command but use my token in place of the one your post specifies, it successfully returns the requested info -- so your curl command is valid as it's currently structured, it's just that your token value seems to be invalid.
EDIT
Re-reading your post, I now understand that the token in your post is the one that's used in the example in the API docs. That's not a valid access token. You'll need to create your own API access token (via the Smartsheet UI, as described here: https://smartsheet-platform.github.io/api-docs/#raw-token-requests), then use that token in your curl request.