With what commands can I compress only certain file extensions with 7zip? e.g. *.txt and *.doc and *.docx (across subdirectories, so 'recursively')
I read Compress only specific files from a folder while preserving folder structure and from there I can see that
7z a archive.7z -ir!.\*.txt would compress all txt files in the current directory, but what if I want to specify multiple extensions e.g.