Creating an archive from a directory without the directory name being added to the archive

Creating an archive from a directory without the directory name being added to the archive

From the 7-Zip Help file:

a (Add) command

Adds files to archive.

Examples

7z a archive1.zip subdir

adds all files and subfolders from folder subdir to archive archive1.zip. The filenames in archive will contain subdir prefix.

7z a archive2.zip .subdir*

adds all files and subfolders from folder subdir to archive archive2.zip. The filenames in archive will not contain subdir prefix.

cd /D c:dir1

7z a c:archive3.zip dir2dir3

The filenames in archive c:archive3.zip will contain dir2dir3 prefix, but they will not contain c:dir1 prefix.

So the command you'd want would be: 7za.exe a folder1.zip .folder1*

Also, pay attention to 7-Zip's handling of wildcards. It doesn't treat *.* as "all files" -- it means "all files with a period in the filename." Extension-less files will be missed. If you really want all files, just use * instead.

Finally, the -tzip parameter isn't needed if the archive filename ends in .zip. 7-Zip is smart enough to figure out which format you want in those cases. It's only required when you want a custom extension (e.g. 7za.exe a -tzip foo.xpi <files> for a Mozilla Add-on).