The o option copies files out to an archive.
o 选项将文件复制到存档。
Because reports generated to standard output usually scroll past your screen, it's recommended that you use the -o option to write the output to a file (see Listing 2).
因为发送到标准输出的报告常常会在屏幕上一滚而过，所以建议使用- o选项将输出写到一个文件中(见清单2)。
Unless you provide a file name for the download file (using the -o option), wget creates a new, local file with the same name as the remote file, omitting the entire leading URL.
除非您为下载的文件提供了相应的文件名(使用- o选项)，否则wget将创建一个与远程文件名称相同的新的本地文件，而省略前面的URL部分。
应用推荐