{"description":"https://jiro4989.github.io/tech/2024/04/21/check-ip-cidr.html cat <<-'EOF' > \"ip.txt\"192.166.1.1192.170.1.1192.177.1.1EOF cat <<-'EOF' > \"cidr.txt\"192.168.0.0/1310.0.0.0/8EOF ls -lcat ip.txtcat cidr.txt cat <<-'EOF' > checkcidr.sh #!/bin/bash ip_to_int() { local IFS=. read -r o1 o2 o3 o4 <<< \"$1\" ec\u2026","version":"1.0","author_name":"HTN20190109","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2026%2F03%2F24%2F222553\" title=\"IP\u304c\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u304b\u78ba\u8a8d\u3059\u308b\u30b7\u30a7\u30eb - HTN20190109\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","author_url":"https://blog.hatena.ne.jp/HTN20190109/","categories":["\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8"],"title":"IP\u304c\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u304b\u78ba\u8a8d\u3059\u308b\u30b7\u30a7\u30eb","type":"rich","height":"190","provider_name":"Hatena Blog","image_url":null,"url":"https://htn20190109.hatenablog.com/entry/2026/03/24/222553","blog_title":"HTN20190109\u306e\u65e5\u8a18","provider_url":"https://hatena.blog","published":"2026-03-24 22:25:53","blog_url":"https://htn20190109.hatenablog.com/"}