Situation
在Linux系統中，將遠端origin設定好，準備push上去時，系統提示輸入Username for 'https://github.com'跟Password for 'https://<my account>/'，照著輸入完之後，居然跳出：
remote: Support for password authentication was removed on August 13, 2021.remote: Please see https://docs.github.com/get-started/getting-started-with-git/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.fatal: Authentication failed for 'https://github.com/<my account>/<my repo>/'但是，當我轉而使用windows的cmd操作push時，卻連密碼都沒問我，就成功推送了。
Solution
REF_1
GitHub/Discussions: “github respiratory authentication failed”
From August 13, 2021, GitHub is no longer accepting account passwords when authenticating Git operations. You need to add a PAT (Personal Access Token) instead, and you can follow the below method to add a PAT on your system.
Create Personal Access Token on GitHub
From your GitHub account, go toSettings => Developer Settings => Personal Access Token => Generate New Token (Give your password) => Fillup the form => click Generate token => Copy the generated Token, it will be something likeghp_sFhFsSHhTzMDreGRLjmks4Tzuzgthdvfsrta
這個操作是要我生成PAT(就是存取用Token)，於是我照做了。 我生成了StudyingSpace Repo Access For Local Git ，到期日是2024/4/22。
REF_2
GitHub/Docs: “Using a personal access token on the command line”
git clone https://HOSTNAME/USERNAME/REPO.git>> Username: YOUR_USERNAME>> Password: YOUR_PERSONAL_ACCESS_TOKEN照做之後，果然可以成功push了。但是，還有個小問題：每次進行操作，都要輸入一次Username跟Password，超級麻煩。
REF_3
GitHub/Docs: “Caching your GitHub credentials in Git” 我用了 GitHub CLI 的HTTPS協定授權，最後總算是成功設定自動授權，以後就可以自由使用remote的各種功能了。
REF_4
git config --global credential.helper store這個方法要簡便的多，也不用額外安裝任何東西，只是記住密碼而已。