{"blog_title":"\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u30e1\u30e2\u3063\u3068\u304f","version":"1.0","type":"rich","title":"awk\u3067\u91cd\u8907\u884c\u3092\u9ad8\u901f\u524a\u9664\u3059\u308b\u3002","url":"https://akiniwa.hatenablog.jp/entry/2014/04/04/203256","height":"190","categories":["awk"],"provider_url":"https://hatena.blog","author_name":"Akiniwa","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fakiniwa.hatenablog.jp%2Fentry%2F2014%2F04%2F04%2F203256\" title=\"awk\u3067\u91cd\u8907\u884c\u3092\u9ad8\u901f\u524a\u9664\u3059\u308b\u3002 - \u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u30e1\u30e2\u3063\u3068\u304f\" 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://akiniwa.hatenablog.jp/","published":"2014-04-04 20:32:56","image_url":null,"provider_name":"Hatena Blog","width":"100%","author_url":"https://blog.hatena.ne.jp/Akiniwa/","description":"awk\u3067\u91cd\u8907\u884c\u3092\u9ad8\u901f\u524a\u9664\u3059\u308b\u3002 \u884c\u306e\u91cd\u8907\u524a\u9664\u3067\u8abf\u3079\u308b\u3068\u3088\u304f\u51fa\u3066\u304f\u308b\u306e\u304c\u3001sort & uniq\u3092\u4f7f\u3063\u305f\u30b3\u30de\u30f3\u30c9\u3002 \u30bd\u30fc\u30c8\u306f\u30d5\u30a1\u30a4\u30eb\u304c\u5927\u304d\u304f\u306a\u308b\u3068\u3001\u5b9f\u884c\u306b\u304b\u306a\u308a\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u306d\u3002 \u30bd\u30fc\u30c8\u305b\u305a\u306b\u9ad8\u901f\u5b9f\u884c\u3067\u304d\u308b\u306e\u304c\u3001\u6b21\u306eawk\u30b3\u30de\u30f3\u30c9\u3002 awk '!colname[$1]++{print $1}' \u3053\u3046\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u3063\u3066\u3001\u4e00\u5217\u76ee\u306e\u540d\u524d\u3092\u53d6\u5f97\u3057\u305f\u3044\u3068\u304d\u3001!colname[$1]\u306f\u3001\u30c7\u30fc\u30bf\u3092\u30ad\u30fc\u306b\u3057\u305f\u9023\u60f3\u914d\u5217\u3067\u3001\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3055\u308c\u308b\u3002 \u30dc\u30d6 \u308a\u3093\u3054 | colname[\"\u30dc\u30d6\"] \u2192 0 {print $1} \u30de\u30a4\u30b1\u30eb \u307e\u3093\u304c | colname[\"\u30de\u30a4\u30b1\u30eb\"] \u2192 0 {print $1}\u2026"}