Like when you send a .7z instead of a .zip or .rar to a friend or a teacher because that’s what your computer has installed and they’re like “Oh No, not one of those, now I have to install 7Zip” even though the same program that opens .rar also opens .7z I feel like people are way more annoyed when they receive a .7z
I sometimes sent a .tar.gz and the teacher figured out how to open it. But he was a technical teacher for electronics. He still has nothing to do with Linux but I jist wanted to experiment.
I refuse to send anything except .zip to basically anyone I know. Because if it was anything else they’d be confused. With the things I’m sending on a regular basis, small images and documents, the difference in performance between archive formats doesn’t really matter anyway.
Imagine me sending tar.gz without second though.
It was first time they saw file with two extensions. They got scared and worried.
Are there any examples of multiple file extensions outside of compression and archiving?
It’s common when you “wrap” one file type inside another. Like .tar combines multiple files into one, then .gz compresses a single file.
You also see it with PGP (encryption).
Suppose I have a javascript file for a node server’s backend access named db.js
Suppose I write tests for those functions and name the test script file db.test.js
Suppose I tar and gzip that file (bear with me), now named db.test.js.tar.gz
Suppose I sign that file with PGP, now named db.test.js.tar.gz.pgp
Now suppose I want to hide that signed compressed tarball of a javascript tests file for my db functions, and to do so, I name it .db.test.js.tar.gz.pgp
Now I have a file that looks like it consists of nothing but extensions. I’m sure you could push it even further though, if you tried.
It’s much the same when I send .tar.gz / .tgz files. Folk get uppity about it not being .zip. I don’t bother with other formats purely because I know I can expand them anywhere without installing additional software.
As for .rar, I always view them with suspicion. Dodgy.
I’ve never come across a legitimate use of RAR, you are quite right about the link to warez/virus/trojans and other malware but it will never shake that association. As for Kaspersky, I trust that steaming pile of Russian spyware even less.
Not really. I dont think it matters at all. Also dosent all modern operating systems have extracting files Just build in regardless of the format?
