{"height":"190","version":"1.0","width":"100%","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","url":"https://hfuji.hatenablog.jp/entry/2019/02/27/190507","blog_url":"https://hfuji.hatenablog.jp/","description":"\u5f8c\u8f29\u304b\u3089\u6559\u308f\u3063\u305fTips\u3002 $ echo foo \u2191\u3053\u308c\u306e\u300c$\u300d\u306e\u8272\u3092\u524d\u306e\u30b3\u30de\u30f3\u30c9\u306e\u7d42\u4e86\u30b3\u30fc\u30c9\u304c0\u4ee5\u5916\u3060\u3063\u305f\u3089\u8d64\u8272\u8868\u793a\u306b\u3057\u305f\u3044\u3002 $ false $ # \u2191$\u3092\u8d64\u304f\u3059\u308b Mac \u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067 .bash_profile \u3092\u7de8\u96c6\u3057\u3066\u5909\u6570 PS1 \u3092\u3044\u3058\u308b\u3002 RETURN_CODE_DOLLAR='$([ $? -eq 0 ] && echo -en \\[\\e[37m\\] || echo -en \\[\\e[31m\\])\\$\\[\\e[37m\\]' PS1=\"${RETURN_CODE_DOLLAR} \" \u3053\u308c\u3067\u3088\u308d\u3057\u3044\u3002PS1\u306e\u4e2d\u3067 $()\u3092\u4f7f\u3063\u3066\u8272\u3092\u57cb\u3081\u8fbc\u3080\u3002 \u3064\u3044\u3067\u306b\u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhfuji.hatenablog.jp%2Fentry%2F2019%2F02%2F27%2F190507\" title=\"\u30d7\u30ed\u30f3\u30d7\u30c8\u306e$\u3092\u7d42\u4e86\u30b3\u30fc\u30c9\u306b\u3088\u3063\u3066\u8272\u5909\u66f4\u3059\u308b - Fuji Haruka&#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>","published":"2019-02-27 19:05:07","title":"\u30d7\u30ed\u30f3\u30d7\u30c8\u306e$\u3092\u7d42\u4e86\u30b3\u30fc\u30c9\u306b\u3088\u3063\u3066\u8272\u5909\u66f4\u3059\u308b","categories":[],"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/f/fuji_haruka/20190227/20190227190428.png","type":"rich","blog_title":"Fuji Haruka's blog","author_name":"fuji_haruka","author_url":"https://blog.hatena.ne.jp/fuji_haruka/"}