Linux

Huh. tar tf and unzip -l. I'm not sure I'd even bother to write a shell function to combine them, much less install software.

Zips just exploding to files is so common, if you just mkdir unzpd ; unzip -d unzpd file.zip it's going to be right nearly all of the time. Same with tarballs always containing a directory; it's just so common it's barely worth checking.

You write the tools you need, don't get me wrong. This seems like, at most, a 10-line bash function, and even that seems excessive.

function pear() {
case $1 in
  *.zip)
    unzip -l "$1"
    ;;
  *.tar.*)
    tar tf "$1"
    ;;
esac
}

Well, patool exists.

Nifty! I've recently begun using archivemount-ng, which allows mounting an archive of the formats you mention (not rar though, but I have rar2fs for that), and in theory one can easily mount an archive using those methods and just do a tree in the mount folder, but it seems that pear saves a few steps and makes that a lot easier.

Haven't used archivers from the command line for the last few decades already, so I have a question: is it faster than using the appropriate tools? When using GUIs, some archive listings are opened almost instantly, others, like *.tar.zst, could take dozens of minutes...

P.S. There is actually no need to commit ".gitignore"