7zip command line - archive name from source file name - 7zip

Question

How can I read name of source file and send it as archive name in 7zip using cmd archive option.
Now I use:
7z a -t7z V:\archive.7z V:\Backup\*.bak
I want to check bak namefile in V:\Backup (there is always only 1 file) and send it as archive.7z - for example if in V:\Backup is 1 file named "20131028_1100.bak" I want to name archive "20131028_1100.7z"

Answer 1

I found this to work:
Get-ChildItem *txt | ForEach-Object {.\7zr.exe a -t7z $($_.Name).replace('.txt','.7z') $_.FullName}
Example:
PS C:\tools> ls
Directory: C:\tools
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 2022/08/01 11:00 578048 7zr.exe
-a---- 2022/08/01 11:02 7 hello.txt
PS C:\tools> Get-ChildItem *txt | ForEach-Object {.\7zr.exe a -t7z $($_.Name).replace('.txt','.7z') $_.FullName}
7-Zip (r) 22.01 (x86) : Igor Pavlov : Public domain : 2022-07-15
Scanning the drive:
1 file, 7 bytes (1 KiB)
Creating archive: hello.7z
Add new data to archive: 1 file, 7 bytes (1 KiB)
Files read from disk: 1
Archive size: 133 bytes (1 KiB)
Everything is Ok
PS C:\tools> ls
Directory: C:\tools
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 2022/08/01 11:00 578048 7zr.exe
-a---- 2022/08/01 11:20 133 hello.7z
-a---- 2022/08/01 11:02 7 hello.txt
PS C:\tools> ls

Answer 2

you need a .bat script that execute a FOR command like this:
for %%X in (*) do "7zip\App\7-Zip\7z.exe" a "%%~nX.zip" "%%X"
%%X will catch the file name of every file contained in the folder where you will execute the script (in this case V:\Backup\ and only 1 file would be processed), so %%~nX.zip will take that file name

Answer 3

7zip keep source file name to archive
As "capa" said, it is necessary to use shell commands, because 7zip does not provide a command for this case.
The following edited command is available in order to operate with *.bak files and it is working for "7z" compression extension. It is more efficient than "zip" format in compression rate.
7z Format
FOR %%I IN (.bak) DO "c:\Program Files\7-Zip\7z.exe" a -t7z %%~nI.7z %%~nI.
zip Format
FOR %%I IN (.bak) DO "c:\Program Files\7-Zip\7z.exe" a -tZip %%~nI.zip %%~nI.
In the above commands the " * " symbol before .bak is not appeared. Please add it!
Also add the " * " to the end of each command.
*Create a "bat" file for example "compressbak.bat" on *.bak files directory, copy and paste the preferred command(7z or zip), "Save" the content on "compressbak.bat"! This will create named archives of *.bak files in the same folder that *.bak files saved. Also if you running on Windows x64 and you have a x86 version of 7-Zip you have to follow the right path in order to call the 7z.exe file. "c:\Program Files (x86)\7-Zip\7z.exe"
Folder and bat file content!
I hope that it helps you!!!