{"image_url":null,"url":"https://ike-dai.hatenablog.com/entry/20101026/1288103158","blog_title":"ike-dai's blog","published":"2010-10-26 23:25:58","description":"expr\u3067\u8db3\u3057\u7b97\u3001\u5f15\u304d\u7b97\u3001\u639b\u3051\u7b97\u3001\u5272\u308a\u7b97\u306a\u3069\u306a\u3069\u5404\u7a2e\u6f14\u7b97\u304c\u3067\u304d\u307e\u3059\u304c\u30011\u70b9\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u8db3\u3057\u7b97 expr $a + 2\u5f15\u304d\u7b97 expr $a - 2\u5272\u308a\u7b97 expr $a / 2\u639b\u3051\u7b97 expr $a * 2 \u3067\u306f\u306a\u304f\u3001 expr $a \\* 2 \u3067\u306a\u3044\u3068syntax error\u3067\u6012\u3089\u308c\u307e\u3059\u3002\"*\"\u304c\u30b7\u30a7\u30eb\u306e\u7279\u6b8a\u8a18\u53f7\u306a\u306e\u3067\u30a8\u30b9\u30b1\u30fc\u30d7\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3088\u3046\u3067\u3059\u3002 \u53c2\u8003\uff1ahttp://d.hatena.ne.jp/tgk/20070524/1180007509","height":"190","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fike-dai.hatenablog.com%2Fentry%2F20101026%2F1288103158\" title=\"expr \u30b3\u30de\u30f3\u30c9\u3067\u639b\u3051\u7b97\u306f\u6ce8\u610f - ike-dai&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://ike-dai.hatenablog.com/","width":"100%","author_name":"ike-dai","author_url":"https://blog.hatena.ne.jp/ike-dai/","version":"1.0","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","title":"expr \u30b3\u30de\u30f3\u30c9\u3067\u639b\u3051\u7b97\u306f\u6ce8\u610f","categories":["Linux"]}