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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Compression’ Category

7zip on a Mac: Keka, 7zip on Windows: their plain installer.

Posted by jpluimers on 2014/08/04

Though I’ve written only a few blog posts about 7zip – my compressor of choice ever since I discovered 7zip some 10 years ago around version 3.13 (their history goes much further back: 1999) – here is a fresh one:

7zip is a fast, free, multi-platform and has great compression. No wonder Toms Hardware gave them an award last year: And The Undisputed Winner Is… 7-Zip.

For Windows, I take the downloads from 7-Zip: there are both x64 and x86 versions (x64 supports more memory so can handle bigger archives).

For Mac, I’ve been using Keka – the free Mac OS X file archiver. Both compressing and decompressing involve dragging the uncompressed or compressed files to the Keka dock icon.

That is slightly more involved than the context menu in Windows, but it works great.

For Windows command line usage, I use either 7za.exe or 7z.exe (uses DLLs, supports more compression)

For Mac command line usage, I use p7zip.

–jeroen

Posted in 7zip, Apple, Compression, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, OS X 10.8 Mountain Lion, Power User, Windows, Windows 7, Windows 8, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Leave a Comment »

7za in the OS X Terminal on your Mac

Posted by jpluimers on 2014/01/25

On both Windows and OS X, I use 7zip a lot. Usually the GUI versions (currently 7z920 on Windows and Keka 1.0.4 on OS X).

But for some purposes (for instance: compressing .lnk files) the 7za command-line version is a must (it has lots of options).

Note that the Windows 7za command-line version is 32-bit.

If you handle really large files on Windows, you might want to use the 64-bit 7z.exe that is in `%ProgramFiles%\7-Zip\7z.exe`.

There are a few ways to install the 7za console version on a Mac so you can access 7za from the Terminal in OS X. Read the rest of this entry »

Posted in 7zip, Apple, Compression, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User | Leave a Comment »

Zipping .lnk files

Posted by jpluimers on 2011/11/04

.lnk files are very usefull as they can link to both files and directories.

However, somehow the GUI tools for zipping .lnk files tend to compress the .lnk target, not the .lnk itself.
I tried the Windows Explorer, WinZIP and 7zip GUIs to no avail.

The 7za command-line to the rescue:

7za a -tzip lnk-files.zip *.lnk

Unpacking the zip using the GUI works fine though.

You can get the latest 7za here.

–jeroen

Posted in 7zip, Batch-Files, Compression, Development, Power User, Scripting, Software Development | Leave a Comment »

Batch file tricks – double quotes splitting and downloading latest 7-zip

Posted by jpluimers on 2010/09/02

I needed a quick means to download the latest 7-zip from the command-line in Windows.

This batchfile makes use of these tools:

7-zip has a download page that contains lines like these:

    <TD class="Item" align="center"><A href="http://downloads.sourceforge.net/sevenzip/7z465.exe">Download</A></TD>

Read the rest of this entry »

Posted in *nix, 7zip, Batch-Files, Compression, Development, Power User, Scripting, Software Development, wget | Leave a Comment »

 
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