{"blog_title":"ike-dai's blog","image_url":null,"author_name":"ike-dai","published":"2010-10-25 18:49:19","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fike-dai.hatenablog.com%2Fentry%2F20101025%2F1288000159\" title=\"\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u6587\u5b57\u5217\u64cd\u4f5c(expr\u30b3\u30de\u30f3\u30c9) - 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>","author_url":"https://blog.hatena.ne.jp/ike-dai/","url":"https://ike-dai.hatenablog.com/entry/20101025/1288000159","blog_url":"https://ike-dai.hatenablog.com/","categories":["Linux"],"height":"190","description":"expr\u304c\u610f\u5916\u3068\u3044\u308d\u3044\u308d\u4f7f\u3048\u308b\u3053\u3068\u3092\u77e5\u3063\u305f\u306e\u3067\u30e1\u30e2\u3057\u3068\u304d\u307e\u3059\u3002\u4eca\u307e\u3067\u3001\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u3067\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u6f14\u7b97\u3068\u304b\u3059\u308b\u306e\u306bexpr\u30b3\u30de\u30f3\u30c9\u3092\u3088\u304f\u4f7f\u3063\u3066\u3044\u307e\u3057\u305f\u3002 \u3053\u3093\u306a\u611f\u3058\u3002 count=0 count=`expr $count + 1` echo $count \u51fa\u529b\u7d50\u679c\u21921 \u5b9f\u306f\u8a08\u7b97\u4ee5\u5916\u306b\u3082\u3044\u308d\u3044\u308d\u4f7f\u3048\u308b\u3053\u3068\u3092\u77e5\u308a\u307e\u3057\u305f\u3002 expr substr \u6587\u5b57\u5217 \u958b\u59cb\u4f4d\u7f6e \u4f55\u6587\u5b57\u5206\u304b\u6307\u5b9a \u3053\u308c\u3067\u6587\u5b57\u5217\u304b\u3089\u7279\u5b9a\u306e\u4f4d\u7f6e\u3092\u62bd\u51fa\u3067\u304d\u308b\u3002 \u4f8b: \u30b3\u30de\u30f3\u30c9\u2192expr substr \"test\" 2 2 \u51fa\u529b\u7d50\u679c\u2192es expr length \u6587\u5b57\u5217 \u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u51fa\u529b \u4f8b: \u30b3\u30de\u30f3\u30c9\u2192expr length \"t\u2026","version":"1.0","provider_url":"https://hatena.blog","type":"rich","width":"100%","title":"\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u6587\u5b57\u5217\u64cd\u4f5c(expr\u30b3\u30de\u30f3\u30c9)","provider_name":"Hatena Blog"}