7zip Ultra LZMA2 compression
How can I convert this settings into command?
Here are the results:
// Manual Compression (see the image above)
Compressed Size: 12,647,451 bytes
// Ultra
7z a -t7z Files.7z -mx9 -aoa
Compressed Size: 12,676,886 bytes
// LZMA2
7z a -t7z Files.7z -m9=LZMA2 -aoa
Compressed Size: 14,237,515 bytes
I am looking here:
https://7-zip.opensource.jp/chm/cmdline/switches/method.htm
I am about to put this in a batch file.
Solution
Your command line should be at least:
7z a -t7z Files.7z -m0=lzma2 -mx=9 -aoa
Note that you'll get better compression when using 1 or 2 threads, not 8.
So, even closer to your GUI settings (ms : solid, d : dictionary size, mhe : encrypt header (file names), p : password)
7z a -t7z -m0=lzma2 -mx=9 -aoa -mfb=64 -md=32m -ms=on -d=1024m -mhe -pSECRET
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