Extract and overwrite existing files

Question

I am trying to write a batch script to extract files out of an existing ZIP file, into another folder on my desktop and to have the system not prompt me as to whether I want to overwrite the existing files or not. The script works with just -o, but once I add -aoa, I get an error:

"C:\Program Files\7-zip\7z.exe" e file1.zip "-aoaC:\Documents and Settings\All Users\Desktop\all_backup_files"

score 23 · Accepted Answer · edited Sep 13 '23 at 19:03

23

The 7-Zip command line options you will need are x, -o and -y:

"C:\Program Files\7-zip\7z.exe" x file1.zip -o"C:\Documents and Settings\All Users\Desktop\all_backup_files" -y

^{Note there mustn't be a gap between -o and the folder name.}

If you type 7z --help you will get a list of valid parameters.

edited Sep 13 '23 at 19:03

demoncodemonkey

640

answered Oct 03 '12 at 18:04

SeanC

3,704

Thanks very much for this Sean. For me it was where to put the switch. I fixed the batch programs and they all work great now. – Larry Oct 03 '12 at 19:24

score 4 · Answer 2 · edited Sep 13 '23 at 19:03

4

"C:\Program Files\7-zip\7z.exe" e file1.zip " -aoa -o"C:\Documents and Settings\All Users\Desktop\all_backup_files"

^{Note there mustn't be a gap between -o and the folder name.}

this will solve the problem refer https://sevenzip.osdn.jp/chm/cmdline/switches/overwrite.htm

edited Sep 13 '23 at 19:03

demoncodemonkey

640

answered Apr 09 '18 at 12:58

Vikram Gondane

41
2

1

Welcome to Super User. On this Q&A site we value answers that remain useful if/when linked material becomes inaccessable. Please [edit] your answer so that it includes the essential elements from your linked source. – I say Reinstate Monica Apr 09 '18 at 13:43
1

On top of which, this doesn't seem to work. Not sure if it's a version issue, but pasting this exact command into my CLI results in the error "Too long switch". Despite when I check --help, the -aoa switch is listed.
The only command that worked for me is SeanC's above.
– Carl S Jan 17 '19 at 20:34
3

@CarlSteinhilber - -aoa works - I fixed the space after the -o parameter which throws this oddball CLI exception – SliverNinja - MSFT Mar 28 '19 at 22:56

Extract and overwrite existing files

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