Update2: Actually the problem was not awk. If it is there then try removing it and restarting the Mac. Command - tab shortcut stops working after a while only way to get it back to work again is by restarting my MacBook. Homebrew is the equivalent for the Mac. These alternatives are used for the same work of APT and come with a few different/better features. I have tried everything on this URL ( Command - Tab shortcut not working) with the same problem but nothing seem to wrok. Thanks for your help. However, the Ubuntu machine has mawk 1.3.3. jupyter: 'notebook' is not a Jupyter command I used the --h option to get a listing of all jupyter commands and indeed, 'notebook' is not one of the commands. So I downloaded mawk and installed it using fink and now the command works in MacOSX. But then after an hour or so it stops again. Question: Q: Command L not working while on OS X El Capitan install screen. What to do when keyboard commands don’t work at startup on your Mac Holding down certain keys when your Mac boots can allow access to certain features. The command awk --version wouldn't work. My Command (CMD) keys are not working on my iMac. It's not as good as having the same keystrokes work on both machines, but at least now there's some keyboard shortcut I can use on the iMac. ... Unfortunately,the CMD key is not still not working and the onscreen interactive keyboard does not show when the CMD key was pressed. It stalled once, so I turned the Mac off and then back on and after turning it back on and waiting a little while my problem was solved, the Mac turned on normally, fully equipped with El Capitan. I just discovered by chance and desperation that, for some reason, ⌘-⌥-delete (command-option-delete) does work. Method 1: Installing Homebrew in macOS. So I think that is why it works on Ubuntu but was not working in MacOSX. I am running python 2.7 and it was already installed before I installed jupyter. Reasons Why Command R Is Not Working on Macbook There are a few reasons why the Command + R combination may not work on your computer, such as: Age of your Mac – If you’re using a Mac that’s still running OS X Snow Leopard or older operating system, then your version doesn’t have Recovery Mode. Anyone know what's causing the shortcut to fail? Had to use awk -W --version. So macOS have few alternatives which work the same as the APT. The command ‘apt-get‘ is intended for installing packages on Linux systems. Original Title: "shell command visual basic" hello for some reason, the shell() call of visual basic does not seem to work with Mac Office 2011 whereas this works fine with Windows Office 2010. it UPDATE: For no apparent reason, ⌘-delete has started working.