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Filed under: Terminal Tips

Terminal Tips: Install software updates from the command line


Sure, you could update your Apple software by opening Software Update from the Apple menu. But what if you're inclined to use a command line interface, or maybe you need to update a remote machine via SSH? There's a way to complete a software update in Terminal.app. Here's how.

If you want to do an automatic install of all the updates for your particular Mac, first log in as an administrative user. Then open Terminal.app (located in /Applications/Utilities), and type (or copy/paste) the following command:
sudo softwareupdate -i -a

and hit Return. Next, you'll be prompted to enter your password; do so, and then hit Return. The application will then look for available updates, download them, and then install them. You will see the progress in Terminal. If no updates are available, Terminal will let you know.

This command replicates the functionality of the normal Software Update utility. However, you can use it on other machines in the background via SSH remote login, or you could apply a specific update rather than the full list of available patches. To see all the command options, type man softwareupdate at the Terminal prompt.

Want more tips and tricks like this? Visit TUAW's Terminal Tips section!

Filed under: UNIX / BSD, Security

Sudos and sudon'ts

I find that I'm visiting RixStep on a regular basis these days. Today I stumbled across this post about using root privileges and thought I'd share it with you. If you want to learn more about using Mac admin privileges, this might not be the best post to start. If you already have some familiarity with the command line and with Unix, you can learn more about what su does, how to authenticate yourself, and understand why this affects security in a handy ten-point check list. It's a little verbose, but there's a lot of good meat in the article.

Filed under: OS, UNIX / BSD

Sudo versus root

Remember the good old days when we didn't have to worry about sudo or root? We have extensions, and we liked it! Why, I remember when OS X couldn't even burn a CD! Ah, OS 9 how we miss you.

Just kidding, OS 9 sucked (that's a joke too.  Sheesh, lighten up, folks). Thanks to our new Unix overlords we Mac folk should know the difference between sudo and root and this post on Linux Box Admin explains it.

Read it, learn it, and love it (in that order).

Tip of the Day

F11 moves all your windows off the screen so you can quickly glance at your desktop. F10 shows you every open window in an application. F9 shows every open window for every application that isn't hidden or in the dock.


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