{"type":"rich","width":"100%","height":"190","version":"1.0","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","author_name":"hirose31","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhirose31.hatenablog.jp%2Fentry%2F20070612%2F1181654210\" title=\" \u914d\u5217\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5 - \uff08\u3072\uff09\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":" \u914d\u5217\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5","categories":["bash"],"url":"https://hirose31.hatenablog.jp/entry/20070612/1181654210","image_url":null,"published":"2007-06-12 22:16:50","blog_title":"\uff08\u3072\uff09\u30e1\u30e2","blog_url":"https://hirose31.hatenablog.jp/","author_url":"https://blog.hatena.ne.jp/hirose31/","description":"\u82e5\u5e72\u30cf\u30de\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002bash \u3067\u914d\u5217\u3092\u4f7f\u3046\u306b\u306f\u3053\u3093\u306a\u611f\u3058\u3002 declare -a aaa aaa=('foo' 'bar' 'baz') echo -n \"# ${#aaa[@]} : \" declare -p aaa \u2193 # 3 : declare -a aaa='([0]=\"foo\" [1]=\"bar\" [2]=\"baz\")' \u307b\u3093\u3067\u3001bash\u3067\u914d\u5217\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u306b\u306funset\u3059\u308c\u3070\u3044\u3044\u3002 unset name[subscript] destroys the array element at index subscript. http://www.linuxcommand.org/ma\u2026"}