Scan a folder recursively and, for each retrieved
.zipfiles, unzip it in the same folder then remove the archive. Use the native Windows compression feature; no dependency with other tools like7-zip.
Click on the green "Code" button, here top left. Download the zip.
You just need the unzip.ps1 script. The unzip.bat file is provided as an example on how to call the script with parameters.
Start a DOS prompt and execute the script by typing powershell .\unzip.ps1 on the prompt.
If you don't provide the required parameters, a help screen will be displayed:
Recursive Unzip
The script will scan a folder recursively and retrieve all .zip files then uncompress the archive in the same folder.
If you specify the `-delete` command line argument, the archive is then removed.
Be careful, this script can be destructive: will overwrite files during the unzip action and remove the archive afterward.
At the end, all .zip files are uncompressed and removed
Usage: unzip [-help] [-delete] [-force] [-folder <foldername>] [-log <filename>]
-help Show this screen
-delete Delete the archive once uncompressed
-force Don't ask for confirmation, run the script
-folder Name of the folder to process
-log Name of a logfile where to keep track of which files were processed (append mode)
The only required parameter is the parameter -folder. You need to specify there an existing folder name, the one where you've zip files.
By default, the script will ask for confirmation before doing his job. Please read the explanations displayed on the screen and press "yes" then Enter key to start the script. If you want to bypass that prompt, use the -force extra parameter.
If no zip are retrieved, the script will display something like this and exit:
Recursive Unzip
0 archives were found in the folder C:\temp
No zip files found in folder C:\temp
Otherwise, the script will display the number of archives found and extract them one by one:
Recursive Unzip
5 archives were found in the folder C:\temp\
001 / 005 - Unzip C:\temp\unzip.zip
002 / 005 - Unzip C:\temp\a1\a1.zip
003 / 005 - Unzip C:\temp\a1\a12\a12.zip
004 / 005 - Unzip C:\temp\a1\a12\a123\a123.zip
005 / 005 - Unzip C:\temp\a1\a12\a123\a1234\a1234.zip
All archives have been extracted
A progress bar will be displayed as the decompression progresses.
Using the native Windows uncompress method, it seems to be impossible to get an exit code i.e. does the uncompress action has succeeded or not.
When a ZIP is password protected, the file will be skipped and no error will trigger as soon as the FOF_NOERRORUI flag has been used. That flag is meanwhile used in the source to make the tool working in a cron task (every night, uncompress files in a given folder f.i.).
By looking at the logfile, you'll then see that the password zip has been retrieved and processed but you can't see if the unzip has work or not.
So, in conclusion, no protected file will be unzipped by this tool, they'll be ignored without any notification.
You can also directly start the script like this: powershell .\unzip.ps1 -folder c:\temp -force to bypass the confirmation prompt.