How to Create a Zip Archive of a Directory

Creating Directories in a ZipArchive C# .Net 4.5

You can use something like the following, in other words, create the directory structure by hand:

using (var fs = new FileStream("1.zip", FileMode.Create))
using (var zip = new ZipArchive(fs, ZipArchiveMode.Create))
{
    zip.CreateEntry("12/3/"); // just end with "/"
}

How to create a zip archive of a directory?

As others have pointed out, you should use zipfile. The documentation tells you what functions are available, but doesn't really explain how you can use them to zip an entire directory. I think it's easiest to explain with some example code:

import os
import zipfile
    
def zipdir(path, ziph):
    # ziph is zipfile handle
    for root, dirs, files in os.walk(path):
        for file in files:
            ziph.write(os.path.join(root, file), 
                       os.path.relpath(os.path.join(root, file), 
                                       os.path.join(path, '..')))

with zipfile.ZipFile('Python.zip', 'w', zipfile.ZIP_DEFLATED) as zipf:
    zipdir('tmp/', zipf)

How to create a zip archive with PowerShell?

If you head on over to CodePlex and grab the PowerShell Community Extensions, you can use their write-zip cmdlet.

Since

CodePlex is in read-only mode in preparation for shutdown

you can go to PowerShell Gallery.

Create zip file and ignore directory structure

You can use -j.

-j
--junk-paths
          Store just the name of a saved file (junk the path), and do  not
          store  directory names. By default, zip will store the full path
          (relative to the current directory).

Create zip file from all files in folder

Referencing System.IO.Compression and System.IO.Compression.FileSystem in your Project

using System.IO.Compression;

string startPath = @"c:\example\start";//folder to add
string zipPath = @"c:\example\result.zip";//URL for your ZIP file
ZipFile.CreateFromDirectory(startPath, zipPath, CompressionLevel.Fastest, true);
string extractPath = @"c:\example\extract";//path to extract
ZipFile.ExtractToDirectory(zipPath, extractPath);

To use files only, use:

//Creates a new, blank zip file to work with - the file will be
//finalized when the using statement completes
using (ZipArchive newFile = ZipFile.Open(zipName, ZipArchiveMode.Create))
{
    foreach (string file in Directory.GetFiles(myPath))
    {
        newFile.CreateEntryFromFile(file, System.IO.Path.GetFileName(file));
    }              
}

How to create a zip archive containing multiple files and subfolders in memory?

In your code you need to close the zip file after writing data into it. Below is the example code.

import io
import zipfile
b = io.BytesIO()
zf = zipfile.ZipFile(b, mode='w')
zf.writestr('a/b.txt', 'look here')
zf.writestr('a/c.txt', 'look there')
zf.close()
open('here.zip', 'wb').write(b.getbuffer())

How to zip a file using cmd line?

If you are using Ubuntu Linux:

1. Install zip

   sudo apt-get install zip
   

2. Zip your folder:

   zip -r {filename.zip} {foldername}
   

If you are using Microsoft Windows:

Windows does not come with a command-line zip program, despite Windows Explorer natively supporting Zip files since the Plus! pack for Windows 98.

I recommend the open-source 7-Zip utility which includes a command-line executable and supports many different archive file types, especially its own *.7z format which offers superior compression ratios to traditional (PKZIP) *.zip files:

1. Download 7-Zip from the 7-Zip home page

2. Add the path to 7z.exe to your PATH environment variable. See this QA:
   How to set the path and environment variables in Windows

3. Open a new command-prompt window and use this command to create a PKZIP *.zip file:

   7z a -tzip {yourfile.zip} {yourfolder}
   

Cross-platform Java:

If you have the Java JDK installed then you can use the jar utility to create Zip files, as *.jar files are essentially just renamed *.zip (PKZIP) files:

jar -cfM {yourfile.zip} {yourfolder}

Explanation:
* -c compress
* -f specify filename
* -M do not include a MANIFEST file

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