Pretty sure it’s stock Cinnamon, but I do have extensions installed which could be screwing with things.

Right clicking the title bar of a window on Linux Mint, the menu appears but I can’t click it until I move the window away from it (the menu doesn’t close) and then it becomes responsive. I love Linux.

2>&1 pipes stderr to stdout, which would not affect a binary like file which doesn’t parse stdin. You would need something like xargs file which would convert the stdout to command line arguments.

This looks like a combination of JSONP and the ES2015 computed property name syntax. JSONP is used to load into web pages using a script tag and execute the function (item) with the data, rather than a direct response from Ajax.

As for tools, jq may be able to parse this assuming you remove the item( and the last );