I've switched to LLM's for explaining commands. Here's ChatGPT4o:

The command tar xvzf 1.zip appears to be trying to extract a compressed archive file, but there's a mismatch between the file extension (1.zip) and the command options used for tar. Let me break it down:

tar: This is the command-line utility for working with tar archives (tape archives). It can be used to create, extract, and manipulate tar files.

x: This option tells tar to extract files from an archive.

v: This stands for "verbose", which means that tar will list the files being extracted to the terminal.

z: This option tells tar to handle a compressed archive using gzip. It is typically used with .tar.gz or .tgz files.

f: This tells tar that the next argument is the name of the archive file.

However, the file 1.zip is a ZIP file, not a tar.gz file. ZIP files are handled by the unzip command, not tar. Using tar xvzf on a .zip file would result in an error, as tar expects a .tar.gz file when using the z option.

To properly extract a .zip file, you should use:

unzip 1.zip

This command will extract the contents of the ZIP file.

Isn't it true that you must provide the hyphen before `xvzf`?

You are right. And it seems that's the case with several other arguments that follows `tar`such as `cvf`, `xvf`, `czvf`...etc

https://xkcd.com/1168/