{"height":"190","blog_title":"\u307f\u305a\u3074\u30fc\u65e5\u8a18","width":"100%","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmzp.hatenadiary.org%2Fentry%2F20070106%2F1184801285\" title=\"\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u4e0a\u66f8\u304d\u3092 - \u307f\u305a\u3074\u30fc\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","author_url":"https://blog.hatena.ne.jp/mzp/","published":"2007-01-06 08:28:05","description":"\u8a73\u89e3 \u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8aad\u3093\u3067\u308b\u306e\u3067\u3001\u6c17\u306b\u306a\u3063\u305f\u3068\u3053\u308d\u3092\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u3002\u305f\u3057\u304b\u5927\u5b66\u306eLinux(csh)\u3060\u3068\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u4e0a\u66f8\u304d\u3067\u304d\u306a\u3044\u3002 $ echo a > test $ echo a > test csh: test: File exists.\u3053\u3044\u3064\u306f\u4e0a\u66f8\u304d(clobber)\u3092\u9632\u3050noclobber\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u539f\u56e0\u306a\u306e\u3067\u3001unset\u3057\u3066\u3084\u308c\u3070\u3044\u3044\u3002 $ unset noclobber $ echo a > test\u3042\u308b\u3044\u306f>!\u3092\u4f7f\u3048\u3070\u3001\u7121\u8996\u3057\u3066\u4e0a\u66f8\u304d\u3067\u304d\u308b\u3002 $ echo a >! test# \u304f\u305d\u3046\u3002\u672c\u306b\u66f8\u3044\u3066\u3042\u3063\u305f\u306e\u306fsh\u7cfb\u3067\u3001\u5927\u5b66\u306e\u306fcsh\u3060\u304b\u3089\u3042\u3093\u307e\u5f79\u306b\u7acb\u3063\u3066\u306d\u30fc\u305e\u3002\u307e\u3042\u2026","categories":["Unix","Shell"],"title":"\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u4e0a\u66f8\u304d\u3092","version":"1.0","author_name":"mzp","url":"https://mzp.hatenadiary.org/entry/20070106/1184801285","image_url":null,"blog_url":"https://mzp.hatenadiary.org/"}