rar

How to read the rar file comment on linux command line

…衆ロ難τιáo~ 提交于 2019-12-11 13:16:50
问题 I have foo.rar , and I want to read the file comment Comment example on Windows: How to do it in Linux command line? 回答1: Try: rar v archive.rar fname | grep Comment: should work for a one-liner comment. If the comment spans multiple lines you will need more sophisticated output parsing. 来源: https://stackoverflow.com/questions/36943812/how-to-read-the-rar-file-comment-on-linux-command-line

What's the file structure of a rar file compressed in store mode

怎甘沉沦 提交于 2019-12-11 07:39:04
问题 I have many rars that a stored in store mode, that means they aren't compressed. I want to open them and read parts of the file that is "stored" in the rar. I think I can just open them if I knew the offset to the files. Something in C# will do very well. I can't find anything on the web. 回答1: The file format is publicly available, but I can't find it as text on their site. When you install WinRAR, a text file with the technical information is put inside the Program Files WinRAR directory.

How to set path to unrar library in Python?

孤人 提交于 2019-12-11 04:25:20
问题 I am using Pycharm as my IDE (Python 3.7) and am trying to extract a password protected .rar file (I know the password) and have imported rarfile from unrar but am getting this error "LookupError: Couldn't find path to unrar library." I also attempted changing my import statement to just say "import rarfile" but instead got the following error "rarfile.RarCannotExec: Unrar not installed?" I also tried including this line of code, based on something I found in the rarfile documentation:

Create split archives (zip, rar, 7z)?

雨燕双飞 提交于 2019-12-10 21:41:17
问题 In short: I need to split a single (or more) file(s) into multiple max-sized archives using dummy-safe format (e.g. zip or rar anything that work will do!). I would love to know when a certain part is done (callback?) so I could start shipping it away. I would rather not do it using rar or zip command line utilities unless impossible otherwise. I'm trying to make it os independent for the future but right now I can live if the compression could be made only on linux (my main pc) I still need

zip和rar压缩文件的区别

杀马特。学长 韩版系。学妹 提交于 2019-12-10 20:39:30
mulu 压缩文件的原理 两种压缩文件的方式所使用的的算法不相同,zip是免费且开源的,但是单次处理文件的上限是4GB。rar是受专利保护的,并且具有更加优良的压缩率,以及单次处理文件没有上限。 压缩文件的原理 压缩方式分为有损和无损两种方式,比如说 mp3 是有损的,它通过忽略一些无关紧要的位来达到压缩的目的。 而 zip 和 rar 是无损压缩,通过将二进制中连续的 0 或 1 使用特殊方法表示,来降低文件的大小。 来源: CSDN 作者: 戎码关山 链接: https://blog.csdn.net/dghcs18/article/details/103481518

How to calculate CRC of a WinRAR file?

只愿长相守 提交于 2019-12-10 17:25:56
问题 I know CRC calculation algorithm from Wikipedia. About structure of RAR file I read here. For example, there was written: The file has the magic number of: 0x 52 61 72 21 1A 07 00 Which is a break down of the following to describe an Archive Header: 0x6152 - HEAD_CRC 0x72 - HEAD_TYPE 0x1A21 - HEAD_FLAGS 0x0007 - HEAD_SIZE If I understand correctly, the HEAD_CRC (0x6152) is CRC value of Marker Block (MARK_HEAD). Somewhere I read, that CRC of a WinRAR file is calculated with standard polynomial

Read content of RAR file into memory in Python

眉间皱痕 提交于 2019-12-10 13:31:22
问题 I'm looking for a way to read specific files from a rar archive into memory. Specifically they are a collection of numbered image files (I'm writing a comic reader). While I can simply unrar these files and load them as needed (deleting them when done), I'd prefer to avoid that if possible. That all said, I'd prefer a solution that's cross platform (Windows/Linux) if possible, but Linux is a must. Just as importantly, if you're going to point out a library to handle this for me, please

extract .rar files to a specific directory in php

不问归期 提交于 2019-12-10 12:04:10
问题 I want to extract .rar file not .zip file using php I followed this example in php manual php manual the problem in this tutorial is not extract the files to directory, it prints the content of the file to browser. 回答1: You should be able to extract the files from the archive with the RarEntry::extract method. So something like: $archive = RarArchive::open('archive.rar'); $entries = $archive->getEntries(); foreach ($entries as $entry) { $entry->extract('/extract/to/this/path'); } $archive-

ubuntu下rar文件解压后文件名乱码

ぃ、小莉子 提交于 2019-12-10 07:34:17
1.解决方法 : 安装convmv windows下编码格式为gbk,而ubuntu使用utf8,使用convmv这个命令解决 convmv能将文件的文件名从一种编码格式转换成为另外一种编码格式 sudo apt-get install convmv convmv * -f gbk -t utf8 --notest 2.安装p7zip-rar sudo apt-get install p7zip-rar 用p7zip解压 来源: oschina 链接: https://my.oschina.net/u/940580/blog/107822

ubuntu下安装rar解压和多线程下载工具axel工具

会有一股神秘感。 提交于 2019-12-10 07:34:08
一般通过默认安装的ubuntu是不能解压rar文件的,只有在安装了rar解压工具之后,才可以解压。其实在ubuntu下安装rar解压工具是非常简单的,只需要两个步骤就可以迅速搞定。 ubuntu下rar解压工具安装方法: 压缩功能 安装 sudo apt-get install rar 卸载 sudo apt-get remove rar 解压功能 安装 sudo apt-get install unrar 卸载 sudo apt-get remove unrar 多线程下载工具axel在终端的安装:sudo apt-get install axel 使用方法:axel 文件下载地址 来源: oschina 链接: https://my.oschina.net/u/136768/blog/33236