{"type":"rich","title":"\u6307\u5b9a\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u65b9\u6cd5 ( head \u7de8 )","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakuya-1st.hatenablog.jp%2Fentry%2F2020%2F03%2F18%2F140351\" title=\"\u6307\u5b9a\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u65b9\u6cd5 ( head \u7de8 ) - \u305d\u308c\u30de\u30b0\u3067\uff01\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2020-03-18 14:03:51","version":"1.0","url":"https://takuya-1st.hatenablog.jp/entry/2020/03/18/140351","provider_url":"https://hatena.blog","blog_title":"\u305d\u308c\u30de\u30b0\u3067\uff01","width":"100%","image_url":null,"categories":["linux","bash"],"height":"190","blog_url":"https://takuya-1st.hatenablog.jp/","description":"\u4efb\u610f\u306e\u6307\u5b9a\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u65b9\u6cd5 head \u3092\u4f7f\u3046\u5834\u5408\u3002 takuya@~$ head -c 100k /dev/urandom > out takuya@~$ ll out -rw-r--r-- 1 takuya staff 100K 2020-03-18 13:59 out \u30e9\u30f3\u30c0\u30e0( /dev/urandom) \u304b\u3089\u8aad\u307f\u51fa\u3057\u3066\u3001\u6307\u5b9a\u30b5\u30a4\u30ba\u3092\u4f5c\u308a\u307e\u3059\u3002 head \u306f -c \u3067\u30b5\u30a4\u30ba\u6307\u5b9a\u304c\u51fa\u6765\u307e\u3059\u3002 \u8272\u3005\u306a\u30b5\u30a4\u30ba 1M ( 1024*1024 )\u306e\u30b5\u30a4\u30ba\u3092\u8aad\u307f\u3060\u3057\u305f\u5834\u5408 takuya@~$ head -c 1m /dev/urandom > out takuya@~$ ll out -r\u2026","author_url":"https://blog.hatena.ne.jp/takuya_1st/","author_name":"takuya_1st"}