HTN20190109 https://blog.hatena.ne.jp/HTN20190109/ HTN20190109の日記 https://htn20190109.hatenablog.com/ OS Ubuntu (22)https://qiita.com/sawanoboly/items/461605ab86678053dc8fhttps://www.kwbtblog.com/entry/2022/10/29/073259 -- 1. Base64エンコードデコード echo -n "admin:admin" | base64echo -n "YWRtaW46YWRtaW4=" | base64 -d -- 2. URLエンコードデコード sudo apt install jq nkf echo -n "hoge@://fuga" | jq -Rr '@uri'echo -n "hoge… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2023%2F05%2F01%2F010929" title="Base64エンコードとURLエンコード - HTN20190109の日記" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2023-05-01 01:09:29 rich https://htn20190109.hatenablog.com/entry/2023/05/01/010929 1.0 100%