[ilyagr]

I just had to decompress a 7z file on linux. It is really confusing -- there is no 7unzip command. A random third-party tool decompressed the archive incorrectly. The official p7zip package consists of three or more different command-line tools that are meant to handle any operation you could imagine, with different and weird options. Slogging through them takes quite a bit of manpage reading, and there are hidden gotchas. For example, the "simple interface", p7zip, is optimized for .tar.7z files, and deletes the original archive when decompressing. It is supposed to only do it only if there's one file in the archive, but it happened for me regardless.

The correct command is '7z x <file>'.

It's quite a contrast from the good experience I had with 7zip on Windows.