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How do I determine file encoding in OS X?
...lla OSX Yosemite, it yields more precise results than "file -I":
$ file -I pdfs/udocument0.pdf
pdfs/udocument0.pdf: application/pdf; charset=binary
$ vic pdfs/udocument0.pdf
latin1
$
$ file -I pdfs/t0.pdf
pdfs/t0.pdf: application/pdf; charset=us-ascii
$ vic pdfs/t0.pdf
utf-8
...
Argument list too long error for rm, cp, mv commands
I have several hundred PDFs under a directory in UNIX. The names of the PDFs are really long (approx. 60 chars).
27 Answers...
Saving grid.arrange() plot to file
... anything but returns a grob g, that you can pass to ggsave(file="whatever.pdf", g).
The reason it works differently than with ggplot objects, where by default the last plot is being saved if not specified, is that ggplot2 invisibly keeps track of the latest plot, and I don't think grid.arrange sho...
App Inventor 2 PersonalImageClassifier (PIC) 拓展：自行训练AI图像识别...
...的人物是高兴、愤怒、哭泣等图片的判定信息），通过AI算法的训练，对输入的样本及标注进行拟合，形成最终的训练集数据。有了这份训练集数据，当下次我们输入一张新的图像时，AI算法根据训练集数据就能判断出图片中的...
Find the extension of a filename in Ruby
...t's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".txt", ".pdf"]
irb(main):003:0> File.extname("example.pdf") # get the extension
=> ".pdf"
irb(main):004:0> accepted_formats.include? File.extname("example.pdf")
=> true
irb(main):005:0> accepted_f...
MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...Master节点。这个过程对于应用是透明的。
2 Bully选举算法
Bully算法是一种协调者（主节点）竞选算法，主要思想是集群的每个成员都可以声明它是主节点并通知其他节点。
别的节点可以选择接受这个声称或是拒绝并进入主...
社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...通知管理员及时处理。未来比较理想应该是通过机器学习算法自动完成策略调整，保证抓取不间断。
整个抓取使用了 xpath、正则表达式、消息中间件、多线程调度框架（参考）。xpath 是一种结构化网页元素选择器，支持列表和...
Website screenshots
... outputs it in a ps file (ghostscript), then, convert it in a .jpg, .png, .pdf.. can be little slower with complex pages (and don't support all the CSS).
Else, you can use wkhtmltopdf to output a html page in pdf, jpg, whatever..
Accept CSS2.0, use the webkit (safari's wrapper) to render the page.....
Execute a command line binary with Node.js
...ec:
var exec = require('child_process').exec;
var cmd = 'prince -v builds/pdf/book.html -o builds/pdf/book.pdf';
exec(cmd, function(error, stdout, stderr) {
// command output is in stdout
});
If you need to use handle process I/O with streams, such as when you are expecting large amounts of ou...
Attach a file from MemoryStream to a MailMessage in C#
...tem.Net.Mime.MimeTypeNames like System.Net.Mime.MediaTypeNames.Application.Pdf
Based on Mime Type you need to specify correct extension in FileName for instance "myFile.pdf"
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