Chapter 2: Invoking 8
style each dot represents 1K, there are ten dots in a cluster and 50 dots in a line.
The binary style has a more “computer”-like orientation—8K dots, 16-dots clusters
and 48 dots per line (which makes for 384K lines). The mega style is suitable for
downloading large files—each dot represents 64K retrieved, there are eight dots in
a cluster, and 48 dots on each line (so each line contains 3M). If mega is not enough
then you can use the giga style—each dot represents 1M retrieved, there are eight
dots in a cluster, and 32 dots on each line (so each line contains 32M).
With ‘--progress=bar’, there are currently two possible parameters, force and
noscroll.
When the output is not a TTY, the progress bar always falls back to “dot”, even
if ‘--progress=bar’ was passed to Wget during invokation. This behaviour can
be overridden and the “bar” output forced by using the “force” parameter as
‘--progress=bar:force’.
By default, the ‘bar’ style progress bar scroll the name of the file from left to right
for the file being downloaded if the filename exceeds the maximum length allotted
for its display. In certain cases, such as with ‘--progress=bar:force’, one may not
want the scrolling filename in the progress bar. By passing the “noscroll” parameter,
Wget can be forced to display as much of the filename as possible without scrolling
through it.
Note that you can set the default style using the progress command in .wgetrc.
That setting may be overridden from the command line. For example, to force the
bar output without scrolling, use ‘--progress=bar:force:noscroll’.
‘--show-progress’
Force wget to display the progress bar in any verbosity.
By default, wget only displays the progress bar in verbose mode. One may however,
want wget to display the progress bar on screen in conjunction with any other
verbosity modes like ‘--no-verbose’ or ‘--quiet’. This is often a desired a property
when invoking wget to download several small/large files. In such a case, wget could
simply be invoked with this parameter to get a much cleaner output on the screen.
This option will also force the progress bar to be printed to stderr when used
alongside the ‘--logfile’ option.
‘-N’
‘--timestamping’
Turn on time-stamping. See Chapter 5 [Time-Stamping], page 33, for details.
‘--no-use-server-timestamps’
Don’t set the local file’s timestamp by the one on the server.
By default, when a file is downloaded, its timestamps are set to match those from
the remote file. This allows the use of ‘--timestamping’ on subsequent invocations
of wget. However, it is sometimes useful to base the local file’s timestamp on when
it was actually downloaded; for that purpose, the ‘--no-use-server-timestamps’
option has been provided.
‘-S’
‘--server-response’
Print the headers sent by http servers and responses sent by ftp servers.
‘--spider’
When invoked with this option, Wget will behave as a Web spider, which means
that it will not download the pages, just check that they are there. For example,
you can use Wget to check your bookmarks:
剩余70页未读，继续阅读
Mark_Hui
- 粉丝: 0
- 资源: 5
我的内容管理
展开
最新资源
- 计算机人脸表情动画技术发展综述
- 关系数据库的关键字搜索技术综述：模型、架构与未来趋势
- 迭代自适应逆滤波在语音情感识别中的应用
- 概念知识树在旅游领域智能分析中的应用
- 构建is-a层次与OWL本体集成：理论与算法
- 基于语义元的相似度计算方法研究：改进与有效性验证
- 网格梯度多密度聚类算法：去噪与高效聚类
- 网格服务工作流动态调度算法PGSWA研究
- 突发事件连锁反应网络模型与应急预警分析
- BA网络上的病毒营销与网站推广仿真研究
- 离散HSMM故障预测模型：有效提升系统状态预测
- 煤矿安全评价：信息融合与可拓理论的应用
- 多维度Petri网工作流模型MD_WFN：统一建模与应用研究
- 面向过程追踪的知识安全描述方法
- 基于收益的软件过程资源调度优化策略
- 多核环境下基于数据流Java的Web服务器优化实现提升性能
资源上传下载、课程学习等过程中有任何疑问或建议，欢迎提出宝贵意见哦~我们会及时处理！
点击此处反馈
