{"id":22302,"date":"2024-02-18T11:05:58","date_gmt":"2024-02-18T11:05:58","guid":{"rendered":"https:\/\/science-hub.click\/Bourne-Again%E3%82%B7%E3%82%A7%E3%83%AB%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A9%B3%E3%81%97%E3%81%8F%E8%A7%A3%E8%AA%AC\/"},"modified":"2024-02-18T11:05:58","modified_gmt":"2024-02-18T11:05:58","slug":"Bourne-Again%E3%82%B7%E3%82%A7%E3%83%AB%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6%E8%A9%B3%E3%81%97%E3%81%8F%E8%A7%A3%E8%AA%AC","status":"publish","type":"post","link":"https:\/\/science-hub.click\/?p=22302","title":{"rendered":"Bourne-Again \u30b7\u30a7\u30eb\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac"},"content":{"rendered":"<div><div><p><strong>Bash<\/strong>\u306f<i>Bourne-again Shell<\/i>\u306e\u7565\u3067\u3001GNU \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30b7\u30a7\u30eb\u3067\u3059\u3002\u305d\u306e\u540d\u524d\u306f\u3001\u6b74\u53f2\u7684\u306a Unix<i>\u30b7\u30a7\u30eb<\/i>\u3067\u3042\u308b Bourne \u30b7\u30a7\u30eb\u306e\u540d\u524d\u3092\u3082\u3058\u3063\u305f\u3082\u306e\u3067\u3059\u3002Bourne <i>again<\/i> \/ <i>Born again \u306f\u3001<\/i> \u300c\u518d\u3073\u751f\u307e\u308c\u5909\u308f\u308b\u300d\u307e\u305f\u306f\u300c\u751f\u307e\u308c\u5909\u308f\u308b\u300d\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u5f8c\u8005\u306b\u57fa\u3065\u3044\u3066\u3001\u7279\u306b<span><a href=\"https:\/\/science-hub.click\/?p=22616\">Korn \u30b7\u30a7\u30eb<\/a><\/span>\u3068 C \u30b7\u30a7\u30eb\u304b\u3089\u591a\u304f\u306e\u6539\u826f\u304c\u52a0\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002 Bash \u306f\u3001General Public License (GPL) \u306b\u57fa\u3065\u3044\u3066\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f<span><a href=\"https:\/\/science-hub.click\/?p=23778\">\u30d5\u30ea\u30fc \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2<\/a><\/span>\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u591a\u304f\u306e\u7121\u6599<span><a href=\"https:\/\/science-hub.click\/?p=6158\">Unix<\/a><\/span> \u3001\u7279\u306b GNU\/Linux \u30b7\u30b9\u30c6\u30e0\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u3067\u3059\u3002\u3053\u308c\u306f<span>Mac OS X<\/span>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8 \u30b7\u30a7\u30eb\u3067\u3082\u3042\u308a\u3001 <span>Cygwin<\/span><span>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/span>\u306b\u3088\u3063\u3066<span><a href=\"https:\/\/science-hub.click\/?p=20340\">Windows<\/a><\/span>\u306b\u79fb\u690d\u3055\u308c\u307e\u3057\u305f\u3002<\/p><div><div> <figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\"Bash \u3092\u4f7f\u7528\u3057\u305f\u4f5c\u696d\u30bb\u30c3\u30b7\u30e7\u30f3\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/VnxTw6eaN4c\/0.jpg\" style=\"width:100%;\"\/><\/figure><div> Bash \u3092\u4f7f\u7528\u3057\u305f\u4f5c\u696d\u30bb\u30c3\u30b7\u30e7\u30f3<\/div><\/div><\/div><h2><span>\u6b74\u53f2<\/span><\/h2><p>\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u8457\u8005\u306f <span>\u30d5\u30ea\u30fc \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8ca1\u56e3<\/span>\u306e\u30d6\u30e9\u30a4\u30a2\u30f3 \u30d5\u30a9\u30c3\u30af\u30b9\u3067\u3001\u5f8c\u306b\u30c1\u30a7\u30c3\u30c8 \u30ec\u30a4\u30df\u30fc\u306b\u3088\u3063\u3066\u4e2d\u7d99\u3055\u308c\u307e\u3057\u305f\u3002\u30aa\u30ea\u30b8\u30ca\u30eb\u306e<span><a href=\"https:\/\/science-hub.click\/?p=64241\">\u30dc\u30fc\u30f3 \u30b7\u30a7\u30eb\u306f<\/a><\/span>Steve Bourne \u306b\u3088\u3063\u3066\u66f8\u304b\u308c\u307e\u3057\u305f\u3002<\/p><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\" Bourne-Again \u30b7\u30a7\u30eb\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/cEJ1B-4A4uU\/0.jpg\" style=\"width:100%;\"\/><\/figure><h2><span>\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u64cd\u4f5c<\/span><\/h2><p>Bash \u306f readline \u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001C \u30b7\u30a7\u30eb\u3068\u540c\u69d8\u306b\u3001TAB \u30ad\u30fc\u3092\u62bc\u3059\u3068\u30b3\u30de\u30f3\u30c9\u3068\u30d5\u30a1\u30a4\u30eb\u306e\u540d\u524d\u304c\u81ea\u52d5\u7684\u306b\u88dc\u5b8c\u3055\u308c\u3001\u4f5c\u696d\u304c\u5927\u5e45\u306b\u9ad8\u901f\u5316\u3055\u308c\u307e\u3059\u3002 UP \u30ad\u30fc\u3068 DOWN \u30ad\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30b3\u30de\u30f3\u30c9\u5c65\u6b74\u3092\u7c21\u5358\u306b\u79fb\u52d5\u3067\u304d\u307e\u3059\u3002<\/p><h2><span><span>\u30b3\u30de\u30f3\u30c9<\/span>\u8a00\u8a9e<\/span><\/h2><p>\u3057\u305f\u304c\u3063\u3066\u3001\u884c\u306e\u6700\u521d\u306e\u5358\u8a9e\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u306b\u3088\u3063\u3066\u30b3\u30de\u30f3\u30c9\u540d\u3068\u898b\u306a\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3044\u304f\u3064\u304b\u306e\u7a2e\u985e\u304c\u3042\u308a\u3001\u512a\u5148\u9806\u4f4d\u3082\u7570\u306a\u308a\u307e\u3059\u3002\u512a\u5148\u9806\u4f4d\u306e\u964d\u9806\u306b:<\/p><ol><li><em>\u30a8\u30a4\u30ea\u30a2\u30b9<\/em>: \u5225\u306e\u5358\u8a9e (\u30b0\u30eb\u30fc\u30d7) \u306e\u540c\u7fa9\u8a9e\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u308b\u5358\u8a9e\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u306f\u5358\u8a9e\u3092\u540c\u7b49\u306e\u5358\u8a9e\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u304b\u3089\u59cb\u3081\u307e\u3059\u3002<\/li><li><em><span><a href=\"https:\/\/science-hub.click\/?p=91963\">\u5185\u90e8<\/a><\/span><\/em>\u30b3\u30de\u30f3\u30c9: \u3053\u308c\u306f\u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u81ea\u4f53\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3042\u308a\u3001\u5225\u500b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e<span>\u5bfe\u8c61\u3067<\/span>\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3068\u3048\u3070\u3001\u300ccd\u300d(<em>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5909\u66f4<\/em>) \u307e\u305f\u306f\u300cset\u300d\u30b3\u30de\u30f3\u30c9\u306f\u5185\u90e8\u30b7\u30a7\u30eb\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/li><li><em>\u5916\u90e8<\/em>\u30b3\u30de\u30f3\u30c9\u3001\u3064\u307e\u308a\u30de\u30b7\u30f3\u306e<span>\u30c7\u30a3\u30b9\u30af<\/span>\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30e0 (\u307e\u305f\u306f\u30b3\u30de\u30f3\u30c9<span>\u30d5\u30a1\u30a4\u30eb<\/span>\u3001\u4e00\u822c\u306b<em>\u30b9\u30af\u30ea\u30d7\u30c8<\/em>\u3068\u547c\u3070\u308c\u307e\u3059)\u3002\u305f\u3068\u3048\u3070\u3001 <code>\/bin\/ls<\/code>\u6307\u5b9a\u3055\u308c\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u542b\u307e\u308c\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/li><\/ol><p>\u5404\u6ce8\u6587\u306f\u6b21\u306e\u5236\u7d04\u3092\u5c0a\u91cd\u3057\u307e\u3059\u3002<\/p><ol><li>\u884c\u306e<em>\u6700\u521d<\/em>\u306e\u5358\u8a9e\u306f\u30b3\u30de\u30f3\u30c9\u306e<em>\u540d\u524d<\/em>\u3068\u3057\u3066\u89e3\u91c8\u3055\u308c\u3001\u4ed6\u306e\u5358\u8a9e\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u307e\u305f\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u306a\u308a\u307e\u3059\u3002<\/li><li>\u5404\u5358\u8a9e\u306f 1 \u3064\u4ee5\u4e0a\u306e<em><span><a href=\"https:\/\/science-hub.click\/?p=90407\">\u533a\u5207\u308a<\/a><\/span>\u6587\u5b57<\/em>\u3067\u533a\u5207\u3089\u308c\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u6587\u5b57\u306f\u30b9\u30da\u30fc\u30b9\u3068\u30bf\u30d6\u3067\u3059 (IFS: \u5185\u90e8\u30d5\u30a3\u30fc\u30eb\u30c9\u533a\u5207\u308a<span><a href=\"https:\/\/science-hub.click\/?p=72623\">\u5909\u6570<\/a><\/span>\u3092\u4f7f\u7528\u3057\u3066\u5909\u66f4\u53ef\u80fd)\u3002<\/li><li>\u30b3\u30de\u30f3\u30c9\u306e\u7d42\u308f\u308a\u306b\u306f\u300c;\u300d\u304c\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002 (\u8907\u6570\u306e\u30b3\u30de\u30f3\u30c9\u3092\u540c\u3058\u884c\u306b\u914d\u7f6e\u3057\u305f\u3044\u5834\u5408)\u3001\u307e\u305f\u306f<span><a href=\"https:\/\/science-hub.click\/?p=31380\">\u6539\u884c<\/a><\/span>\u306b\u3088\u3063\u3066\u3002<\/li><\/ol><h3> <span>$\u30d1\u30b9<\/span><\/h3><p>\u5916\u90e8\u30b3\u30de\u30f3\u30c9\u306e\u5834\u5408\u3001\u30b7\u30a7\u30eb\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u524d\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3064\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<span><a href=\"https:\/\/science-hub.click\/?p=94765\">\u30d5\u30a1\u30a4\u30eb \u30b7\u30b9\u30c6\u30e0<\/a><\/span><span><a href=\"https:\/\/science-hub.click\/?p=95765\">\u5168\u4f53<\/a><\/span>\u3092\u30b3\u30de\u30f3\u30c9\u3054\u3068\u306b\u5fb9\u5e95\u7684\u306b<span>\u691c\u7d22\u3059\u308b\u3068<\/span>\u3001<span><a href=\"https:\/\/science-hub.click\/?p=82055\">\u6642\u9593<\/a><\/span>\u304c\u304b\u304b\u308a\u3059\u304e\u3066\u3001\u5b9f\u969b\u306b\u306f\u30b7\u30b9\u30c6\u30e0\u304c\u4f7f\u7528\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u691c\u7d22\u3059\u308b\u3068\u304d\u306b\u5b9f\u969b\u306b\u53c2\u7167\u3055\u308c\u308b\u306e\u306f\u3001<span><a href=\"https:\/\/science-hub.click\/?p=57227\">\u5c11\u6570<\/a><\/span>\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u307f\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306f\u3001\u300c$PATH\u300d\u3068\u3044\u3046<span><a href=\"https:\/\/science-hub.click\/?p=37544\">\u74b0\u5883<\/a><\/span>\u5909\u6570\u3067\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002 PATH \u306b\u30ea\u30b9\u30c8\u3055\u308c\u3066\u3044\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u3044\u305a\u308c\u304b\u3067\u30b3\u30de\u30f3\u30c9\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u3001\u5b9f\u884c\u3059\u308b\u3068\u300c\u30b3\u30de\u30f3\u30c9\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u300d\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc<span>\u30e1\u30c3\u30bb\u30fc\u30b8<\/span>\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p><p> Windows \u3067\u884c\u308f\u308c\u308b\u3053\u3068\u3068\u306f\u7570\u306a\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u7406\u7531\u304b\u3089\u3001UNIX \u30b7\u30a7\u30eb (\u3057\u305f\u304c\u3063\u3066 bash) \u306f\u6697\u9ed9\u7684\u306b\u73fe\u5728\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092 PATH \u306b\u542b\u3081\u307e\u305b\u3093\u304c\u3001\u660e\u793a\u7684\u306b\u305d\u3053\u306b\u914d\u7f6e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><h3><span>\u30bb\u30c3\u30b7\u30e7\u30f3<\/span><\/h3><p>\u30bb\u30c3\u30b7\u30e7\u30f3\u306f\u3001 <code>exit<\/code>\u30b3\u30de\u30f3\u30c9\u307e\u305f\u306f\u300cCtrl D\u300d(UNIX \u3067\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u7d42\u308f\u308a\u30de\u30fc\u30af: \u30e6\u30fc\u30b6\u30fc\u304c\u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u8aad\u307f\u53d6\u308a<span><a href=\"https:\/\/science-hub.click\/?p=76299\">\u30b9\u30c8\u30ea\u30fc\u30e0<\/a><\/span>\u3092\u9589\u3058\u308b) \u3092\u4f7f\u7528\u3057\u3066<span><a href=\"https:\/\/science-hub.click\/?p=36310\">\u9589\u3058\u3089\u308c<\/a><\/span>\u307e\u3059\u3002<\/p><h2><span>\u69cb\u6587<\/span><\/h2><p>\u5404\u6ce8\u6587\u306f\u6b21\u306e\u3088\u3046\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059<\/p><ul><li>\u6a19\u6e96\u5165\u529b ( <tt>stdin<\/tt> )<\/li><li>\u6a19\u6e96\u51fa\u529b ( <tt>stdout<\/tt> )<\/li><li>\u30a8\u30e9\u30fc\u51fa\u529b ( <tt>stderr<\/tt> )<\/li><\/ul><p>\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3001\u8ffd\u52a0\u306e\u30d5\u30a1\u30a4\u30eb\u8a18\u8ff0\u5b50\u3092\u30b3\u30de\u30f3\u30c9\u306b\u95a2\u9023\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><h3><span>\u30b7\u30a7\u30eb\u306e\u30e1\u30bf\u30ad\u30e3\u30e9\u30af\u30bf\u30fc<\/span><\/h3><p>\u30e1\u30bf\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306f\u3001\u6587\u5b57\u901a\u308a\u306e\u610f\u5473\u3092\u8d85\u3048\u308b\u610f\u5473\u3092\u6301\u3064\u6587\u5b57\u3067\u3059<sup class=\"reference\" id=\"_ref-0\"><span>[<\/span> 1 <span>]<\/span><\/sup> \u3002 Bash \u306e\u6b63\u898f\u8868\u73fe\u30ec\u30d9\u30eb\u306e\u4f8b\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3059\u3002<\/p><ul><li> \u300c*\u300d: 0 \u56de\u30011 \u56de\u4ee5\u4e0a\u7e70\u308a\u8fd4\u3055\u308c\u305f\u4efb\u610f\u306e\u6587\u5b57\u3068\u4e00\u81f4\u3057\u307e\u3059\u3002<\/li><li> \u300c\uff1f\u300d : \u306f\u4efb\u610f\u306e\u6587\u5b57\u3068\u540c\u7b49\u3067\u3059\u3002<\/li><\/ul><p>\u305d\u306e\u4ed6\u3001Bash \u30b3\u30de\u30f3\u30c9 \u30ec\u30d9\u30eb\u3067\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p><ul><li> \u300c`\u300d\uff1a\u3053\u308c\u3089\u306e\u6587\u5b57\u306e\u9593\u306b\u542b\u307e\u308c\u308b<span>\u6587\u5b57\u5217\u3092<\/span>\u30b3\u30de\u30f3\u30c9\u3068\u3057\u3066\u89e3\u91c8\u3057\u307e\u3059\u3002\u4f8b: <code>for file in `ls`<\/code> ;<\/li><li> \u300c\\\u300d: \u30e1\u30bf\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306e\u7279\u5225\u306a\u89e3\u91c8\u3092\u9632\u304e\u307e\u3059\u3002<\/li><li> &#8220;&#8216;&#8221;: \u3053\u308c\u3089\u306e 2 \u3064\u306e\u6587\u5b57\u306e\u9593\u306b\u542b\u307e\u308c\u308b\u3059\u3079\u3066\u306e\u6587\u5b57\u306f\u3001\u5358\u7d14\u306a\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u89e3\u91c8\u3055\u308c\u307e\u3059\u3002<\/li><\/ul><h3><span>\u30d7\u30ed\u30bb\u30b9\u7ba1\u7406<sup class=\"reference\" id=\"_ref-1\"><span>[<\/span> 2 <span>]<\/span><\/sup><\/span><\/h3><table><tr><th>\u6ce8\u6587<\/th><th>\u904b\u55b6<\/th><th>\u8aac\u660e<\/th><\/tr><tr><td><pre>\n\u3082\u3063\u3066\u3044\u308b \uff06\n<\/pre><\/td><td>\u30b3\u30de\u30f3\u30c9 A \u3092\u8d77\u52d5\u3059\u308b\u65b0\u3057\u3044\u30d7\u30ed\u30bb\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059 (\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u4f9d\u5b58\u3057\u307e\u305b\u3093)\u3002<\/td><\/tr><tr><td><pre>\nA&amp;&amp;B\n<\/pre><\/td><td><span><a href=\"https:\/\/science-hub.click\/?p=57519\">\u8ad6\u7406<\/a><\/span>\u7a4d ( <strong>&amp;&amp;<\/strong> )<\/td><td> A \u304c<strong>\u6210\u529f\u3057<\/strong><strong>\u305f\u3089<\/strong>B \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><pre>\n|| B\n<\/pre><\/td><td>\u307e\u305f\u306f (||)<\/td><td> A<strong>\u304c\u5931\u6557\u3057\u305f<\/strong><strong>\u5834\u5408\u306b\u306e\u307f<\/strong>B \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><pre>\nA\u300cB\u300d\n<\/pre><\/td><td rowspan=\"2\">\u52d5\u7684\u30d1\u30e9\u30e1\u30fc\u30bf<\/td><td rowspan=\"2\">A\u306fB\u306e\u5b9f\u884c<strong>\u7d50\u679c\u3092\u4f7f\u7528\u3057\u307e\u3059<\/strong><\/td><\/tr><tr><td><pre>\n\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2\u30c9\u30eb(B)\n<\/pre><\/td><\/tr><\/table><figure class=\"wp-block-image size-large is-style-default\">\n<img decoding=\"async\" alt=\" Bourne-Again \u30b7\u30a7\u30eb\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\" class=\"aligncenter\" onerror=\"this.style.display=none;\" src=\"https:\/\/img.youtube.com\/vi\/7XNmLlWVG7I\/0.jpg\" style=\"width:100%;\"\/><\/figure><h3><span>\u30d5\u30ed\u30fc\u7ba1\u7406<\/span><\/h3><p>\u5927\u304d\u304f\u5206\u3051\u3066\u6b21\u306e 3 \u3064\u306e\u6d41\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p><ol><li>\u6a19\u6e96<i>\u5165\u529b<\/i>(\u30a8\u30f3\u30c8\u30ea 0);<\/li><li>\u6a19\u6e96<i>\u51fa\u529b<\/i>(\u5165\u529b 1)\u3002<\/li><li>\u6a19\u6e96\u30a8\u30e9\u30fc\u51fa\u529b (\u5165\u529b 2)<\/li><\/ol><p>\u4f7f\u7528\u65b9\u6cd5:<\/p><table><tr><th>\u6ce8\u6587<\/th><th>\u904b\u55b6<\/th><th>\u8aac\u660e<\/th><\/tr><tr><td><pre>\n&gt; \u30d5\u30a1\u30a4\u30eb\u3078\n<\/pre><\/td><td>\u7d42\u4e86 ( <strong>&gt;<\/strong> )<\/td><td>\u30b3\u30de\u30f3\u30c9 A \u3092\u5b9f\u884c\u3057\u3001\u7d50\u679c\u3092<i>\u30d5\u30a1\u30a4\u30eb<\/i>\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059<\/td><\/tr><tr><td><pre>\nA 2&gt; \u30d5\u30a1\u30a4\u30eb\n<\/pre><\/td><td>\u7d42\u4e86 ( <strong>2&gt;<\/strong> )<\/td><td>\u30b3\u30de\u30f3\u30c9 A \u3092\u5b9f\u884c\u3057\u3001\u30a8\u30e9\u30fc\u3092<i>\u30d5\u30a1\u30a4\u30eb<\/i>\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059<\/td><\/tr><tr><td><pre>\nA &gt; \u30d5\u30a1\u30a4\u30eb 2&gt;&amp;1\n<\/pre><\/td><td>\u51fa\u529b ( <strong>&gt;<\/strong>\u304a\u3088\u3073<strong>2&gt;&amp;1<\/strong> )<\/td><td>\u30b3\u30de\u30f3\u30c9 A \u3092\u5b9f\u884c\u3057\u3001\u7d50\u679c\u3068\u30a8\u30e9\u30fc\u3092<i>\u30d5\u30a1\u30a4\u30eb<\/i>\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059<\/td><\/tr><tr><td><pre>\n&lt; \u30d5\u30a1\u30a4\u30eb\n<\/pre><\/td><td>\u5165\u529b ( <strong>&lt;<\/strong> )<\/td><td>\u30b3\u30de\u30f3\u30c9 A \u3092\u5b9f\u884c\u3057\u3001<i>\u30d5\u30a1\u30a4\u30eb\u3092<\/i>A \u306e\u30a8\u30f3\u30c8\u30ea\u3068\u3057\u3066\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><pre>\n\u3042 | B\n<\/pre><\/td><td>\u51fa\u529b\u3001\u5165\u529b( <strong>|<\/strong> )<\/td><td> A \u3092\u5b9f\u884c\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u5165\u529b\u3068\u3057\u3066 B \u306b\u9001\u4fe1\u3057\u307e\u3059<\/td><\/tr><\/table><h3><span>\u5165\u529b\u3068 2 \u3064\u306e\u51fa\u529b\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/span><\/h3><ul><li><strong>&gt; \u3092<\/strong>\u4f7f\u7528\u3057\u3066\u30b3\u30de\u30f3\u30c9\u306e\u6a19\u6e96\u51fa\u529b (stdout) \u3092\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3057\u307e\u3059\u3002<\/li><li> <strong>2&gt;<\/strong> \u300c\u30a8\u30e9\u30fc\u300d\u51fa\u529b (stderr) \u3092\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u305f\u3081<\/li><\/ul><p>\u4e00\u822c\u7684\u306b\u8a00\u3048\u3070\u3001 <strong>n&gt; \u306f<\/strong><sup>n \u756a\u76ee<\/sup>\u306e<span><a href=\"https:\/\/science-hub.click\/?p=63029\">\u30d5\u30a1\u30a4\u30eb\u8a18\u8ff0\u5b50<\/a><\/span>\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002<\/p><ul><li> <strong>&amp;&gt;<\/strong>\u6a19\u6e96\u51fa\u529b\u3068\u30a8\u30e9\u30fc\u51fa\u529b\u3092\u540c\u6642\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u306b\u306f:<\/li><\/ul><h3><span>\u30b7\u30a7\u30eb\u5909\u6570<\/span><\/h3><p>\u5909\u6570\u306f\u3001\u5148\u982d\u306b $ \u8a18\u53f7\u3092\u4ed8\u3051\u3066\u53c2\u7167\u3057\u307e\u3059\u3002\u4f8b: echo $HOME<\/p><p>\u3044\u304f\u3064\u304b\u306e\u74b0\u5883\u5909\u6570: USER PID HOME PATH SHELL<\/p><h3><span>\u30b3\u30de\u30f3\u30c9\u306e\u7f6e\u63db<\/span><\/h3><p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u3001\u30b3\u30de\u30f3\u30c9\u3092\u30d0\u30c3\u30af\u30af\u30a9\u30fc\u30c8\u300c\u30b3\u30de\u30f3\u30c9\u540d\u300d\u3067\u56f2\u3080\u304b\u3001$() $(\u30b3\u30de\u30f3\u30c9\u540d) \u3092\u4f7f\u7528\u3057\u3066\u3001\u5f15\u6570\u3068\u3057\u3066\u306e\u30b3\u30de\u30f3\u30c9\u3092\u305d\u306e\u7d50\u679c (\u6a19\u6e96\u51fa\u529b) \u306b\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002<\/p><h3> <span><span><a href=\"https:\/\/science-hub.click\/?p=8000\">\u8868\u73fe<\/a><\/span><\/span><\/h3><h3><span>\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u306e\u30a8\u30b9\u30b1\u30fc\u30d7\u6587\u5b57 (\u300c\\\u300d)<\/span><\/h3><h4><span>\u884c\u672b\u306e\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5<\/span><\/h4><p>\u884c\u672b\u306e\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u306f\u3001\u30b3\u30de\u30f3\u30c9\u304c\u6b21\u306e\u884c\u306b\u7d9a\u304f\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306f\u3001\u5927\u91cf\u306e\u6ce8\u6587\u3092\u8aad\u307f\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u7279\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p><h4> <span>C \u306e\u7279\u6b8a\u6587\u5b57\u306e 1 \u3064\u3092\u5f62\u6210\u3059\u308b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5<\/span><\/h4><p><tt>$'\\n'<\/tt>\u306b\u4f3c\u305f\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306f\u3001bash \u306b\u3088\u3063\u3066\u7279\u5b9a\u306e\u65b9\u6cd5\u3067\u89e3\u91c8\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f C ANSI \u306e\u898f\u5247\u306b\u5f93\u3063\u3066\u5909\u63db\u3055\u308c\u307e\u3059\u3002\u4f8b \uff1a<\/p><pre>\n<i>echo $'\\a' # \u30d3\u30fc\u30d7\u97f3\u304c\u9cf4\u308a\u307e\u3059\u3002<\/i>\n<\/pre><p>\u30ea\u30b9\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p><table><tr><th>\u6392\u6c17<br\/>\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3067<\/th><th>bash<span>\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf<\/span>\u306b\u3088\u308b\u5909\u63db<\/th><\/tr><tr><td align=\"center\"><tt>\\\u3082\u3063\u3066\u3044\u308b<\/tt><\/td><td>\u30d3\u30fc\u30d7\u97f3<\/td><\/tr><tr><td align=\"center\"><tt>\\b<\/tt><\/td><td>\u5f8c\u90e8\u9593\u9694<\/td><\/tr><tr><td align=\"center\"><tt>\\e<\/tt><\/td><td>\u6392\u6c17<\/td><\/tr><tr><td align=\"center\"><tt>\\f<\/tt><\/td><td>\u30da\u30fc\u30b8\u9001\u308a (\u3053\u306e\u6587\u5b57\u306e\u82f1\u8a9e\u540d\u306f<i>form feed<\/i>\u3067\u3059) <sup class=\"reference\" id=\"_ref-2\"><span>[<\/span> 3 <span>]<\/span><\/sup><\/td><\/tr><tr><td align=\"center\"> <tt>\\n<\/tt><\/td><td>\u6539\u884c<\/td><\/tr><tr><td align=\"center\"><tt>\\r<\/tt><\/td><td><span><a href=\"https:\/\/science-hub.click\/?p=58435\">\u30ad\u30e3\u30ea\u30c3\u30b8<\/a><\/span>\u30ea\u30bf\u30fc\u30f3<\/td><\/tr><tr><td align=\"center\"><tt>\\t<\/tt><\/td><td>\u6c34\u5e73\u30bf\u30d6\u6587\u5b57<\/td><\/tr><tr><td align=\"center\"><tt>\\v<\/tt><\/td><td><span><a href=\"https:\/\/science-hub.click\/?p=54763\">\u5782\u76f4<\/a><\/span>\u30bf\u30d6\u6587\u5b57<\/td><\/tr><tr><td align=\"center\"><tt>\\\\<\/tt><\/td><td>\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5<\/td><\/tr><tr><td align=\"center\"><tt>\\'<\/tt><\/td><td>\u30a2\u30dd\u30b9\u30c8\u30ed\u30d5\u30a3 (\u3053\u306e\u6587\u5b57\u306e\u82f1\u8a9e\u540d\u306f<i>quote<\/i>\u3067\u3059)<\/td><\/tr><tr><td align=\"center\"> <tt>\\nnn<\/tt><\/td><td> 8 \u9032\u6570\u5024\u304c nnn \u3067\u3042\u308b<span><a href=\"https:\/\/science-hub.click\/?p=37872\">8 \u30d3\u30c3\u30c8<\/a><\/span>\u6587\u5b57<\/td><\/tr><tr><td align=\"center\"><tt>\\xHH<\/tt><\/td><td> 16 \u9032\u5024\u304c HH \u3067\u3042\u308b 8 \u30d3\u30c3\u30c8\u6587\u5b57<\/td><\/tr><tr><td align=\"center\"><tt>\\cx<\/tt><\/td><td> Control-X \u6587\u5b57<\/td><\/tr><\/table><p>\u300cASCII\u300d\u3092\u53c2\u7167<\/p><h4><span>bash \u30e1\u30bf\u6587\u5b57\u306e 1 \u3064\u306e\u524d\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5<\/span><\/h4><p>\u30e1\u30bf\u6587\u5b57\u3001\u7279\u306b\u300c*\u300d (\u30b9\u30bf\u30fc) \u306f bash \u30a4\u30f3\u30bf\u30fc\u30d7\u30ea\u30bf\u306b\u3088\u3063\u3066\u89e3\u91c8\u3055\u308c\u307e\u3059 (\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u53ef\u80fd\u306a\u30d5\u30a1\u30a4\u30eb\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u307e\u3059)\u3002\u3053\u308c\u306f\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u9762\u5012\u3067\u3059 ( <i>find<\/i> <sup class=\"reference\" id=\"_ref-3\"><span>[<\/span> 4 <span>]<\/span><\/sup>\u30b3\u30de\u30f3\u30c9\u3001sed\u3001.. .etc)\u3002\u4f8b \uff1a<\/p><pre>\n<i>cd \/etc;find \u3002 -\u540d\u524d r*<\/i>\n\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\n<i>\u691c\u7d22: \u30d1\u30b9\u306f\u5f0f\u306e\u524d\u306b\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/i>\n<\/pre><p>\u89e3\u6c7a\u7b56\u306e 1 \u3064\u306f\u3001\u300c*\u300d\u6587\u5b57\u306e\u524d\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4f8b \uff1a<\/p><pre>\n<i>cd \/etc;find \u3002 -\u540d\u524d r\\*<\/i>\n<\/pre><p>\u6c17\u3065\u3044\u305f<\/p><dl><dd>\u5225\u306e\u89e3\u6c7a\u7b56\u306f\u3001\u5f15\u7528\u7b26\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4f8b<\/dd><\/dl><pre>\n<i>cd \/etc;find \u3002 -\u540d\u524d\u300cr*\u300d<\/i>\n<\/pre><h2><span>\u53ef\u80fd\u306a\u8d77\u52d5\u30b9\u30af\u30ea\u30d7\u30c8\u3068\u30ed\u30b0\u30a2\u30a6\u30c8 \u30b9\u30af\u30ea\u30d7\u30c8<\/span><\/h2><p>\u30ed\u30b0\u30a4\u30f3\u6642\u306b\u5b9f\u884c\u3055\u308c\u308b\u30b9\u30af\u30ea\u30d7\u30c8<\/p><ul><li>\u5168\u30e6\u30fc\u30b6\u30fc\u5171\u901a<ul><li><tt>\/etc\/\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/tt><\/li><\/ul><\/li><li>\u5404\u30e6\u30fc\u30b6\u30fc\u306b\u56fa\u6709\u306e<ul><li><tt>.bash_profile<\/tt><\/li><li> <tt>.bash_login<\/tt><\/li><li> <tt>\u3002\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb<\/tt><\/li><\/ul><\/li><\/ul><p>\u30ed\u30b0\u30a2\u30a6\u30c8\u30b9\u30af\u30ea\u30d7\u30c8<\/p><ul><li><tt>.bash_logout<\/tt><\/li><\/ul><p>\u30ed\u30b0\u30a4\u30f3 \u30b9\u30af\u30ea\u30d7\u30c8\u4ee5\u5916\u306e\u5bfe\u8a71\u578b\u30b7\u30a7\u30eb\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u4f5c\u6210:<\/p><ul><li> <tt>.bashrc<\/tt><\/li><\/ul><\/div><h2 class=\"ref_link\">\u53c2\u8003\u8cc7\u6599<\/h2><ol><li><a class=\"notranslate\" href=\"https:\/\/ar.wikipedia.org\/wiki\/%D8%A8%D8%A7%D8%B4_(%D9%8A%D9%88%D9%86%D9%83%D8%B3)\">\u0628\u0627\u0634 (\u064a\u0648\u0646\u0643\u0633) \u2013 arabe<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/az.wikipedia.org\/wiki\/Bash\">Bash \u2013 azerba\u00efdjanais<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/bg.wikipedia.org\/wiki\/Bash\">Bash \u2013 bulgare<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/bn.wikipedia.org\/wiki\/%E0%A6%AC%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B6_(%E0%A6%87%E0%A6%89%E0%A6%A8%E0%A6%BF%E0%A6%95%E0%A7%8D%E0%A6%B8_%E0%A6%B6%E0%A7%87%E0%A6%B2)\">\u09ac\u09cd\u09af\u09be\u09b6 (\u0987\u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u09b6\u09c7\u09b2) \u2013 bengali<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/bs.wikipedia.org\/wiki\/Bash\">Bash \u2013 bosniaque<\/a><\/li><li> <a class=\"notranslate\" href=\"https:\/\/ca.wikipedia.org\/wiki\/Bash\">Bash \u2013 catalan<\/a><\/li><\/ol><\/div>\n<div class=\"feature-video\">\n <h2>\n  Bourne-Again \u30b7\u30a7\u30eb\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u30fb\u95a2\u9023\u52d5\u753b\n <\/h2>\n <div class=\"video-item\">\n  \n  <figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\">\n   <div class=\"wp-block-embed__wrapper\">\n    <iframe loading=\"lazy\" title=\"\u30106\u5206\u3067\u89e3\u8aac\u3011Linux\u5165\u9580\uff5c\u30b7\u30a7\u30eb\uff06\u30ab\u30fc\u30cd\u30eb\u3092\u8aac\u660e\u3067\u304d\u307e\u3059\u304b\uff1f\uff08sh\u3001bash\u3001tcsh\uff09\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/VnxTw6eaN4c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n   <\/div>\n  <\/figure>\n  \n <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Bash\u306fBourne-again Shell\u306e\u7565\u3067\u3001GNU \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30b7\u30a7\u30eb\u3067\u3059\u3002\u305d\u306e\u540d\u524d\u306f\u3001\u6b74\u53f2\u7684\u306a Unix\u30b7\u30a7\u30eb\u3067\u3042\u308b Bourne \u30b7\u30a7\u30eb\u306e\u540d\u524d\u3092\u3082\u3058\u3063\u305f\u3082\u306e\u3067\u3059\u3002Bourne again \/ Born a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22303,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img.youtube.com\/vi\/vKN8KI1JGJE\/0.jpg","fifu_image_alt":" Bourne-Again \u30b7\u30a7\u30eb\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac","footnotes":""},"categories":[5],"tags":[3350,11,13,14,10,23978,23979,12,16,15],"class_list":["post-22302","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dictionary","tag-shell","tag-techniques","tag-technologie","tag-news","tag-actualite","tag-bourne-again-shell","tag-bourne-again","tag-dossier","tag-sciences","tag-article"],"_links":{"self":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts\/22302"}],"collection":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22302"}],"version-history":[{"count":0,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/posts\/22302\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=\/wp\/v2\/media\/22303"}],"wp:attachment":[{"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/science-hub.click\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}