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Is it possible to create a. Windows 10 includes tar. PowerShell has Compress-Archive :. You'd have to use a third party. Everybody loves 7zip!
I've combined this script from several different sources to suit my needs better. Copy and paste the script into a file with the extension ". The script was originally made for Windows XP, but it also works in Windows 7 x64 Ultimate - no guarantee's if Windows will keep around the various Shell objects this uses. Bat file receive path to dir to be zipped and zip file name as parameters. I tested it with a directory containing multiple nested files and folders and it worked perfectly.
Just follow the format of the command line. There is also a way to unzip the files via command line which I found as well. One way, just brings open an explorer window showing what the content of the zipped file is. Some of these also use Java which isn't necessarily native to windows but is so common that it nearly seems so.
Does Windows 7 have unzip at the command line installed by default? I will post something related to WSkids answer as sadly i cannot use the comment function. One of these issues is that the method returns immediately while the copy process starts in background whereas multiple CopyHere calls will interfere each other and the ZIP won't be created correctly. A wait loop is needed here to fix that. My wait loop is based on an answer to a similar issue posted here.
Here is an updated version which fixes the "Object required" error reported by pihentagy. It's a timing issue as the newly created ZIP file is included in the Items collection when the script is executed on fast machines. Others have already discussed various methods for using the built in windows functions, my solution requires installing the additional software.
Here is another idea, from 4 different sources; not my ideas, but I compiled them to make it work for me. Binary compressed files won't make much difference. Everything has the same import e. It added absolutely-zero…. I remember a story from decades ago where the U. Well, the computers failed to get the job done,…. Coding is a process of failure followed by a moment of great joy. You've gotta ride through the failures to experience the joy More posts from themightymo.
This is the most important and useful option you can use. It specifies the method of compression. Here I will show a bunch of options, and also some examples. Switch m, advanced. Here are advanced compression method -m switches. The first three are usually of limited use, but you might benefit from tweaking them. My experience is that manual optimizations to these options doesn't produce big benefits.
Switch -mfb: Specifies number of fast bytes. Sometimes helps with "sparse" files. Don't bother. Switch -mpass: Number of passes for deflate compression. Don't bother with this. Automatically set with levels. Switch -md: This specifies dictionary size. It is automatically set, so don't bother. Switch -mmt: Enable multithreading. Use if you have quad-core and a huge archive. Specify "on" or "off".
This may be enabled by default. Command x. This command is like "e" except it preserves the full paths. If you have an elaborate or important directory structure, use this option. This would be most useful for system backups or really big backups. Here's the example syntax.
Switch t type. Here I show how to specify the precise archive type you want to create. Note that you can specify any filename you want for any type. But some extensions are recommended—they are standard. Also, the 7-Zip manual provides some useful examples for type switches. It shows the -tiso and -tudf switches. These are not the most common. Almost all of the examples in this document use -t switches. Solid archives. Solid means all the files are compressed as one.
It makes it impossible to use the "u" command to update individual files. This is the default so you won't often need to specify it. Useful when you need to update individual files. Will reduce compression ratios normally. You can change many values and switches on 7z archives, with endless permutations. Some things you can change are dictionary sizes, FastBytes values, MatchFinder values, and filters.
Normally you don't need to deal with these. With the 7z format, you can specify the algorithm. PPMd is fast and effective for compressing plain text files.
It is ideal for large collections of Word documents. PPMd does not perform as well on files containing binary data. They are useful and higher is normally better. They are not normally useful. When should I use PPMd? You should use PPMd when you have a large corpus body of text. This could include HTML or other formatting, but plain text should dominate. Example commands.
Here I show the example compression commands from the 7-Zip manual. I demonstrated simple ones at the start of this document. These are more complex. We use more features of the 7-Zip command line.
Example of 7z format. This next command line shows how to create a solid 7z archive of program files executables. It uses multithreading mode, which means it will be fast on a dual core machine. Create PPMd archive. PPMd is an extraordinary algorithm for compressing text and is relatively new. Here I show a command in the 7-Zip manual that compresses all the text files in the working directory.
It creates a PPMd archive. Compression ratios of to are common for text files. The program is useful for packaging a set of files for distribution; for archiving files; and for saving disk space by temporarily compressing unused files or directories. The default behavior with no options is to extract into the current directory and sub-directories below it all files from the specified ZIP archive.
Options : 1. After creating a zip file, you can remove a file from the archive using the -d option. Suppose we have following files in my current directory are listed below: hello1. This option can be used to update the specified list of files or add new files to the existing zip file.
Update an existing entry in the zip archive only if it has been modified more recently than the version already in the zip archive.
If a directory becomes empty after removal of the files, the directory is also removed.
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