{"id":598,"date":"2026-07-22T20:43:30","date_gmt":"2026-07-22T11:43:30","guid":{"rendered":"https:\/\/www.marchboy.xyz\/wordpress\/archives\/598"},"modified":"2026-07-22T20:43:30","modified_gmt":"2026-07-22T11:43:30","slug":"file%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%a8%e6%b4%bb%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.marchboy.xyz\/wordpress\/archives\/598","title":{"rendered":"file\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u3044\u65b9\u3068\u6d3b\u7528\u6cd5"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>Linux\/Unix \u7cfb OS \u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b <strong>file<\/strong> \u30b3\u30de\u30f3\u30c9\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\uff08MIME \u30bf\u30a4\u30d7\u3084\u6587\u5b57\u30b3\u30fc\u30c9\u306a\u3069\uff09\u3092\u5224\u5225\u3059\u308b\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u62e1\u5f35\u5b50\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u969b\u306e\u30d0\u30a4\u30c8\u5217\u3092\u89e3\u6790\u3057\u3066\u6b63\u78ba\u306b\u5206\u985e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u4e3b\u306a\u30aa\u30d7\u30b7\u30e7\u30f3<\/h2>\n<ul>\n<li><strong>-b<\/strong>\uff1a\u30d5\u30a1\u30a4\u30eb\u540d\u3060\u3051\u3092\u51fa\u529b\u3057\u3001\u8aac\u660e\u6587\u306e\u5148\u982d\u306b\u3042\u308b\u300cfilename:\u300d\u3092\u7701\u7565\u3059\u308b\u3002<\/li>\n<li><strong>-i<\/strong>\uff1aMIME \u30bf\u30a4\u30d7\u306e\u307f\u3092\u51fa\u529b\u3059\u308b\u3002<\/li>\n<li><strong>-L<\/strong>\uff1a\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u3092\u305f\u3069\u3063\u3066\u5b9f\u4f53\u30d5\u30a1\u30a4\u30eb\u3092\u5224\u5b9a\u3059\u308b\u3002<\/li>\n<li><strong>-s<\/strong>\uff1a\u7a7a\u30d5\u30a1\u30a4\u30eb\u3067\u3082\u5224\u5b9a\u7d50\u679c\u3092\u51fa\u529b\u3059\u308b\u3002<\/li>\n<li><strong>-f <em>filelist<\/em><\/strong>\uff1a\u5224\u5b9a\u5bfe\u8c61\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u30ea\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u8aad\u307f\u8fbc\u3080\u3002<\/li>\n<\/ul>\n<h2>\u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b<\/h2>\n<h3>\u5358\u4e00\u30d5\u30a1\u30a4\u30eb\u306e\u5224\u5b9a<\/h3>\n<pre><code>file example.txt<\/code><\/pre>\n<p>\u51fa\u529b\u4f8b:<\/p>\n<pre><code>example.txt: ASCII text<\/code><\/pre>\n<h3>\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u3066\u5224\u5b9a<\/h3>\n<pre><code>file *.png *.jpg<\/code><\/pre>\n<p>\u5404\u30d5\u30a1\u30a4\u30eb\u306e MIME \u30bf\u30a4\u30d7\u3084\u753b\u50cf\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u4e00\u89a7\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u3092\u305f\u3069\u308b<\/h3>\n<pre><code>file -L link_to_script.sh<\/code><\/pre>\n<p>\u30ea\u30f3\u30af\u5148\u306e\u5b9f\u4f53\u304c\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u3042\u308c\u3070\u300cPOSIX shell script\u300d\u306a\u3069\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n<ul>\n<li>\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u3067 <strong>$(file -b &#8211;mime-type &#8220;$f&#8221;)<\/strong> \u3092\u7528\u3044\u3066\u30d5\u30a1\u30a4\u30eb\u30bf\u30a4\u30d7\u3092\u53d6\u5f97\u3057\u3001\u6761\u4ef6\u5206\u5c90\u306b\u5229\u7528\u3067\u304d\u308b\u3002<\/li>\n<li>find \u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u7279\u5b9a\u30bf\u30a4\u30d7\u306e\u30d5\u30a1\u30a4\u30eb\u3060\u3051\u3092\u691c\u7d22\u3059\u308b\u4f8b:\n<pre><code>find . -type f -exec sh -c 'type=$(file -b --mime-type \"$1\"); if [ \"$type\" = \"application\/pdf\" ]; then echo \"$1\"; fi' _ {} \\;<\/code><\/pre>\n<\/li>\n<\/ul>\n<h2>\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<p>\u30fb<strong>file<\/strong> \u306f magic \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08\/usr\/share\/file\/magic\uff09\u3092\u53c2\u7167\u3057\u307e\u3059\u3002OS \u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3084\u65b0\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u8a8d\u8b58\u3055\u305b\u305f\u3044\u5834\u5408\u306f\u3001<code>file -C -m \/path\/to\/custom.magic<\/code> \u3068\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30fb\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3084\u5727\u7e2e\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u5185\u90e8\u306e\u30d8\u30c3\u30c0\u60c5\u5831\u304c\u7121\u3044\u3068\u300cdata\u300d\u3084\u300cunknown\u300d\u3068\u5224\u5b9a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f <code>-z<\/code> \u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u5727\u7e2e\u5c55\u958b\u5f8c\u306e\u5224\u5b9a\u3092\u8a66\u307f\u308b\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>file \u30b3\u30de\u30f3\u30c9\u306f\u3001\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u3084\u65e5\u5e38\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u3067\u300c\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u4f55\u304b\uff1f\u300d\u3092\u77ac\u6642\u306b\u7b54\u3048\u3066\u304f\u308c\u308b\u4fbf\u5229\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u57fa\u672c\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u899a\u3048\u3001<strong>magic \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9<\/strong>\u3092\u9069\u5207\u306b\u7ba1\u7406\u3059\u308c\u3070\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30d5\u30a1\u30a4\u30eb\u30bf\u30a4\u30d7\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 Linux\/Unix \u7cfb OS \u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b file \u30b3\u30de\u30f3\u30c9\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\uff08MIME \u30bf\u30a4\u30d7\u3084\u6587\u5b57\u30b3\u30fc\u30c9\u306a\u3069\uff09\u3092\u5224\u5225\u3059\u308b\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u62e1\u5f35\u5b50\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u969b\u306e\u30d0\u30a4\u30c8\u5217\u3092\u89e3\u6790\u3057\u3066\u6b63\u78ba\u306b\u5206 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-598","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/comments?post=598"}],"version-history":[{"count":0,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/598\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/media?parent=598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/categories?post=598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/tags?post=598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}