http://redleaves.org Fri, 13 Aug 2010 07:07:45 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 http://redleaves.org/archives/1134 http://redleaves.org/archives/1134#comments Fri, 13 Aug 2010 07:07:40 +0000 seven http://redleaves.org/?p=1134 /etc/outfile会报告错误： bash: /etc/outfile: 权限不够 原因简析 这是因为shell在解析上面的命令时时，把sudo route -n做为命令部分执行，而命令的输出结果则存到/etc/outfile中。也就是说sudo只对命令部分有效，对重定向部分无效，所以发生了权限不够的错误。 解决方法 针对上述原因，可以用这个方法解决问题： sudo sh -c "route -n > /etc/outfile" 这样sudo执行的是一个shell，在具有root权限的shell中执行前面的命令，就不会再出现权限问题了。 ]]> http://redleaves.org/archives/1134/feed 0 http://redleaves.org/archives/1131 http://redleaves.org/archives/1131#comments Mon, 12 Jul 2010 10:02:19 +0000 seven http://redleaves.org/?p=1131 http://redleaves.org/archives/1131/feed 0 http://redleaves.org/archives/1126 http://redleaves.org/archives/1126#comments Fri, 25 Jun 2010 05:19:01 +0000 seven http://redleaves.org/?p=1126 http://redleaves.org/archives/1126/feed 0 http://redleaves.org/archives/1110 http://redleaves.org/archives/1110#comments Fri, 18 Jun 2010 04:10:18 +0000 seven http://redleaves.org/?p=1110 http://redleaves.org/archives/1110/feed 0 http://redleaves.org/archives/1075 http://redleaves.org/archives/1075#comments Fri, 11 Jun 2010 07:48:56 +0000 seven http://redleaves.org/?p=1075 http://redleaves.org/archives/1075/feed 0 http://redleaves.org/archives/1099 http://redleaves.org/archives/1099#comments Sat, 22 May 2010 21:30:25 +0000 seven http://redleaves.org/?p=1099 http://redleaves.org/archives/1099/feed 0 http://redleaves.org/archives/1097 http://redleaves.org/archives/1097#comments Tue, 11 May 2010 04:37:03 +0000 seven http://redleaves.org/?p=1097 http://redleaves.org/archives/1097/feed 0 http://redleaves.org/archives/1093 http://redleaves.org/archives/1093#comments Fri, 07 May 2010 10:42:55 +0000 seven http://redleaves.org/?p=1093 http://redleaves.org/archives/1093/feed 0 http://redleaves.org/archives/1084 http://redleaves.org/archives/1084#comments Fri, 30 Apr 2010 08:58:19 +0000 seven http://redleaves.org/?p=1084 http://redleaves.org/archives/1084/feed 0 http://redleaves.org/archives/1078 http://redleaves.org/archives/1078#comments Wed, 28 Apr 2010 21:21:49 +0000 seven http://redleaves.org/?p=1078 http://redleaves.org/archives/1078/feed 0