How to tell the maximum speed of copying a file using Finder or cp or rsync? [duplicate]

I got a Samsung T7 SSD drive knowing that it can handle 1GB/s read or write, but if I used rsync -a --progress --stats --human-readable file1.m4v /Volumes/T7/file1.m4v to tell the speed of copying a file, it only can go up to 180MB/s…

Ask iFixit: Everything You Wanted to Know About Isopropyl Alcohol

Isopropyl alcohol is having a moment. Not an uplifting celebration, unfortunately. It’s more of a panicked where-can-I-find-it, is-this-the-same-stuff moment. Isopropyl alcohol is a disinfectant at its higher percentages, and you can use it to make …

Excel is unusable for large files that link to each other

I am collaborating with a data analyst using two linked files stored in a shared folder in my Dropbox. The first file contains the raw data (several worksheets; total file size ~110MB); the second file contains the outputs (tables; pivo…

SSD firmware upgrade requires iso on a pendrive: how to make that bootable?

Goal is updating a NVMe SSD firmware on a Mac without optical drive via USB stick that should contain a minimal Linux, flasher and payload. The instructions (PDF) for a firmware update utility say to use Unetbootin on MacOS to write an…

How to Download Full MacOS Installers from Command Line

Mac users can download full complete MacOS installers directly from the command line. This is an incredibly useful feature particularly if you want to build USB boot drive installers, you manage multiple Macs, or you simply want to have full access …

Entire "Users" folder is missing when booted into Recovery Mode

I posted this in the Apple Discussions forums, but have yet to get an answer that applies to the depth of which this situation currently exists. My Mac's hard drive (running Mojave) suffered some corruption recently, and I found myself…

Open PDF in browser or Preview instead of downloading

I have certain sites I have to print generated PDF documents. They are not just PDF links but buttons to generate the PDF with selected content. They used to open up in browser or preview but now Safari just starts a download and I don'…

Open PDF in browser or Preview instead of downloading

I have certain sites I have to print generated PDF documents. They are not just PDF links but buttons to generate the PDF with selected content. They used to open up in browser or preview but now Safari just starts a download and I don'…

Open /dev in Finder

Is it possible to open the /dev/ directory in Finder? If not why? Is it on some kind of exclude list? I would like to use a GUI to list the files there on macOS Catalina. Is this possible?

Entire "Users" folder is missing when booted into Recovery Mode

I posted this in the Apple Discussions forums, but have yet to get an answer that applies to the depth of which this situation currently exists. My Mac's hard drive (running Mojave) suffered some corruption recently, and I found myself…

How to Bookmark a Web Page in Safari on iPhone & iPad

Want to bookmark a web page or website in Safari on iPhone or iPad? Bookmarks make revisiting websites and webpages super easy, and are an excellent way to keep track of things on the web. It’s fairly easy to add and manage bookmarks in Safari, but …

What are ways of installing Python 3?

In short I'm looking to install Python 3 (have a programme that on one of it's recent updates no longer ran with 2.7) I have Homebrew installed (but am not sure how I did it e.g. by Sudo I think?) and am looking to upgrade 2.7 to 3? Fo…

SSD firmware upgrade requires iso on a pendrive: how to make that bootable?

Goal is updating a NVMe SSD firmware on a Mac without optical drive via USB stick that should contain a minimal Linux, flasher and payload. The instructions (PDF) for a firmware update utility say to use Unetbootin on MacOS to write an…

Open /dev in Finder

Is it possible to open the /dev/ directory in Finder? If not why? Is it on some kind of exclude list? I would like to use a GUI to list the files there.

Open /dev in Finder

Is it possible to open the /dev/ directory in Finder? If not why? Is it on some kind of exclude list? I would like to use a GUI to list the files there.

Accidently installed Catalina I did not have a time machine back up and want to go back to High Sierra 10.13

While installing a security update I accidentally installed Catalina. I do not have a Time Machine backup for my High Sierra 10.13. So now I have made a Time Machine backup in Catalina and my plan is to wipe the HD and re-install High S…

Accidently installed Catalina I did not have a time machine back up and want to go back to High Sierra 10.14

While installing a security update I accidentally installed Catalina. I do not have a Time Machine backup for my High Sierra 10.14. So now I have made a Time Machine backup in Catalina and my plan is to wipe the HD and re-install High S…

Entire "Users" folder is missing when booted into Recovery Mode

I posted this in the Apple Discussions forums, but have yet to get an answer that applies to the depth of which this situation currently exists. My Mac's hard drive (running Mojave) suffered some corruption recently, and I found myself…

Entire "Users" folder is missing when booted into Recovery Mode

I posted this in the Apple Discussions forums, but have yet to get an answer that applies to the depth of which this situation currently exists. My Mac's hard drive (running Mojave) suffered some corruption recently, and I found myself…

How to Pair Playstation 4 Controller with macOS Catalina

Mac users can pair and use Playstation 4 controllers with their Mac, which makes for an excellent gaming experience. The ability to pair PS4 controllers to the Mac has been around a while, but with MacOS Catalina 10.15 onward, it’s easier than befor…

Huawei Mate Xs Teardown: The Most Durable Foldable Yet?