7-Zip Command Line: Extract Silently/quietly

Answer :

7-Zip does not have an explicit "quiet" or "silent" mode for command line extraction.

A similar question over at Stack Overflow, Extracting a 7-Zip file "silently" - command line option, gives a possible solution using Python scripting code:

One possibility would be to spawn the child process with popen, so its output will come back to the parent to be processed/displayed (if desired) or else completely ignored (create your popen object with stdout=PIPE and stderr=PIPE to be able to retrieve the output from the child).

And then a similar question here on Super User, Redirect 7-Zip's command-line output to /dev/null on Windows when extracting a .7z file reports that the issue is mostly the output, and that by sending the output to NULL, you make the system run essentially silent:

Try doing this:

%COMSPEC% /c "%ProgramFiles%\7-Zip\7z.exe" ...

Yes, it does support command line use. Open a command prompt and navigate to the install folder (typically C:\Program Files\7-Zip) and type:

7z -h 

Here is the result:

7-Zip 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18  Usage: 7z <command> [<switches>...] <archive_name> [<file_names>...]        [<@listfiles...>]  <Commands>   a: Add files to archive   b: Benchmark   d: Delete files from archive   e: Extract files from archive (without using directory names)   l: List contents of archive   t: Test integrity of archive   u: Update files to archive   x: eXtract files with full paths <Switches>   -ai[r[-|0]]{@listfile|!wildcard}: Include archives   -ax[r[-|0]]{@listfile|!wildcard}: eXclude archives   -bd: Disable percentage indicator   -i[r[-|0]]{@listfile|!wildcard}: Include filenames   -m{Parameters}: set compression Method   -o{Directory}: set Output directory   -p{Password}: set Password   -r[-|0]: Recurse subdirectories   -scs{UTF-8 | WIN | DOS}: set charset for list files   -sfx[{name}]: Create SFX archive   -si[{name}]: read data from stdin   -slt: show technical information for l (List) command   -so: write data to stdout   -ssc[-]: set sensitive case mode   -ssw: compress shared files   -t{Type}: Set type of archive   -u[-][p#][q#][r#][x#][y#][z#][!newArchiveName]: Update options   -v{Size}[b|k|m|g]: Create volumes   -w[{path}]: assign Work directory. Empty path means a temporary directory   -x[r[-|0]]]{@listfile|!wildcard}: eXclude filenames   -y: assume Yes on all queries 

So here is one example of a silent extraction:

7z x "C:\Path\To\File.zip" -y > nul