Here are the top 50 Mac OS
terminal commands you need to know. So get your coffee ready. This
will take about 10 minutes. First, how do you launch a terminal? Hit
the command key and space bar. Search for a terminal. There it
is to enter and you're there. Let's do something fun first. We can actually make our Mac
talk right from the terminal. Just type in say and
whatever you want to say and. Whatever you want to say. Isn't that. Awesome? I mess with my
kids a lot with this one. Did you know your Matt keeps a record of
all the wifi passwords you've ever used and we can find those passwords right
from the terminal. Check this out. The command is security find
dash generic dash password, do a dash w and then the name of that
wifi network. I haven't been here in ages, but there's the password right there. If I wanna quickly copy that
and share it with a friend, run that command once more but do a pipe
and type in PB copy and this will copy the output of any command to your
clipboard allowing me to send Nick that password. And you can use
PB copy with any command. Now I'm sure you know how to copy and
paste on your Mac, highlight some texts. Command C and command V to paste.
But often you don't want that format, you just want the plain text,
the pace without formatting, command options shift and V plain text. And I know that wasn't the terminal
but it's still pretty cool. How do you stay awake? Caffeine your Mac the same way and the
terminal type in caffeinate and enter and as long as your terminal is up, your Mac will stay awake and then hit
control C to stop coffee break for that. Taking screenshots on a mac is
pretty easy. Command shift three, your whole screen and by default
saves to your desktop. There it is. That's cool, but I kind of hate that.
What I always do is command shift four, which allows me to select just part of
what I wanna copy and saves it to the desktop. But even better, it's
command control shift four. It's getting crazy and when you
capture it, it goes to your clipboard. So I can tell Nick how awesome
Dashlane is. There you go, Nick. And Nick does love using Dashlane.
Don't you better say yes Nick, I'm gonna lock you in a liminal space. Now I know that wasn't a terminal command, but with the terminal you can change
the default name of your screenshots cuz right now they're named random as you
can see down here with this command. And this is kind of wordy, so I'll
have all these commands below, but defaults right com, dot
apple, dot screen, capture name, and then whatever you wanna name
it. So now when I capture my screen, it'll name it exactly what we want. We can also change the default
file type with the type option. Let's say we want JPEGs instead done. Or we can also change the location
with the location option on where our screenshots are saved. Now don't get scared but your Mac
does keep a history of everything you download. Like seriously,
it's in a database. Use this command to see what you've
downloaded and it's actually in a sequel light three database, kind of interesting. And right there it'll show
you a lot of empty space, all the things you've downloaded, even
if you clear your browsing history. So if you don't want Tim Cook or
anyone else to know what you've been downloading, use this
command to clear that stuff. Nothing there to change your password,
you don't have to leave the terminal. Just type in P A S S WD or password
and you can change your password. And then I'll go ahead and update my
key chain user with that command they provide. And by the way, I have a
different password for everything. You should too. And I know it seems impossible to manage
but not with Dashlane sponsor of this video. Dashlane is the password manager I use
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and logins and all kinds of stuff. Now personally it tells me my password
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manage all my employees passwords, making sure their passwords are
healthy, that they're changing them, especially my new employees. I'm watching
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Don't get hacked, do this. Now you may have known that
Mac is very similar to Linux. They're both Unix based, which means a
lot of the commands on Linux work on Mac. So let's take a quick coffee
break and then I'll speed around. My favorite linnux commands I think you
need to know for your Mac CD will change your current working directory. Type in CD where you want
to go and you're there. Type in CD space to get back home. The LS command will list all the files
of folders in your directory wherever you are. But where are you? Let's
find out with the PWD command. We'll print your working directory.
There I am. But who am I? <laugh>. You can find out with the who am I
command telling you exactly who you are. In case you forget, we can move files with the MV command
specifying our file and where we wanna move it to. We can use the CP command to copy files
specifying our file and where we want to copy it too. Mac OS actually has a
better version of that called Ditto, which I love cuz well it's called Ditto
and it works in a very similar way to the CP command. Use the DF dash H command to see how
much space you have on your hard drive. Use the nano command to start editing
a file right here in your terminal. No need to go anywhere and in control X, Y and enter to save and get out of there. Use the man command to learn about
your commands, man. Sorry for that. I can man nano to find out what it is
hitting Q to quit that I can, man. Man, I can use the open command too. Well uh,
open things like the screenshot. Bam. Yes, I know you can click on it but it
feels so much better opening it from a terminal, doesn't it? It does. If you wanna see if your favorite
website is up and running, type in the ping command and
then the name of the website. If you get responses then it's
up it control C to stop that. What's your IP address? Type in if config,
but maybe you can't find it like me. Try doing. If config and
specifying the e N zero interface, this will work for most people.
Now that's kind of messy. We'll do that same command but we'll
do a pipe and use the grip command, which allows us to filter all what we
wanna see. So I'll dore inet better, even better is the A command,
another pipe type ink. And with some crazy regular expression
stuff I get just the IP addresses, both IPV four and IPV V six to see the
path through the internet that you're taking to get to a certain
website, type in trace route. This one's really cool trace route the
website you wanna see and we'll show you every router you hit, including the
latency. Great for troubleshooting. If you want to dig into the DNS of a
website, you can use the tool called dig. Dig the website name and
you all the DNS goodness. If you wanna see all the processes on
your computer, type in the PS command, which won't tell you a lot so you
have to tell. You wanna see more, type in PS dash ax and you do get
a lot more with the top command. You can see which processes are
using the most CPU real time. You can also filter by memory
by doing top dash o are size, seeing what's using the most
memory on your computer. One of my favorite commands, the kill
command will kill a running process. So I'll find my running process.
I wanna kill with the PS command. I'll regret for the name, find
my process id. There it is. And then I'll do kill dash nine
and the process ID and I killed it. Speed round done. Now
with the Mac o s terminal, you can use different types of
shells. That's our next command. Find out what you're using with the which
shell dollar sign. Shell command. Hey, we're using Zsh but you may not want to. We can switch to good old Bash by typing
in Bash and suddenly we're in Bash world. Or we can switch back
to Zsh with the eSSH command. And we're using Zsh again.
How long has your Mac been up? We can find out with the uptime
command. Seven days. Woo. It's a good boy to flush your DNS cash. You'll use these series of
commands to make it happen. Put in your pseudo password and you're
good to get a quick preview with the file. We can do that from the terminal. The QL managed command with the dash
P and the file name little preview, just like that. If we
want compare two files, we can use the diff command
diff and the file names. We can also download files through
our terminal with the curl command. Curl the URL you wanna download from. And then just use a right atic point
to where you wanna store done entire BI downloaded. We can also
curl the weather curl wtt, r i n slash and where you wanna be. If you're spending too
much time in the terminal, you can set an alarm in your terminal. Type in leave and what time you want
the alarm for. We'll say 1245 alarm set. And it tells you to leave because you
have to be told to leave the terminal. It's too fun to see it history, all your commands because you've been
typing a lot of commands type in history and there they are. This one's pretty
handy cuz you can disable your gatekeeper. The thing on your Mac that keeps you
from installing apps you want to install that might be insecure, but whatever.
I know what I'm doing to do that. One simple command, pseudo SP CTL space dash
master dash disabled. Put in your pseudo password,
take that gatekeeper. Now. I would not do that for anyone that
doesn't need it. Like your parents don't. Don't let them do that. Now here are where the commands get
kind of crazy and fun and amazing, but we gotta do something first. We have to install brew because everything
good starts with a good brew there. Check Coffee Brew is known as the
missing package manager for Mac West. And you probably didn't know it
was missing, but hey, we found it. Install it with one command. I'll
have that below. It's kind of wordy. And let it do its thing.
It might take a moment. So go ahead and take a little coffee
break while your brew is brewing. Do your brew brew, brew
some br, drink some coffee. And now we can have some fun. This
first thing I wanna show you is crazy. Type in brew install C
matrix. Once installed, simply type in C matrix
and take the red pill. Neo <laugh>. How cool is that?
Pick control cda, exit the matrix. This next one is pretty cool
too. Brew Install Askie Aquarium. And when installed, simply type in
Askie Aquarium and go Fish. Dude, I could watch this all day. You ask a
little ship going across. All right, control cda, get out. Toilet. Toilet.
That's the name of this next one. That's kind of weird. Brew
installed toilet. Fun fact. I used to sell toilets and once
installed, you can turn any name, text, whatever into Askie character art
like this Toilet network. Chuck. Ah, beautiful Toilet. Hi Nick. Hi Nick. That's just fun and I know
you were wondering. Chuck, can I play Tetris and Terminal?
The answer is yes. Duh. Brew install Sam t Tetris. Install it. And then simply type in Tetris.
Choose your level and go to town. Yes, the terminal can do everything and
more. Hit escape to get out of there. Now your Mac does have Python three
installed by default. Python is amazing. Two amazing for me to tell you everything. But one thing you can do is start a little
web server right from where you are. Type in Python three dash m htt t, no attp dot server. And suddenly you
have a little web server on four 8,000, which means anybody on your
network can go to your IP address on port 8,000 and browse your stuff. Which means you can easily share files
just like that in case all the other stuff doesn't work. That's
pretty cool, I think. Hit control seat and that web server. And when you're ready to
shut down your computer, you don't have to leave the terminal, you can stay right here
with the shut down command. Shut down dash H now for right now
or dash R and now for a restart. And finally I save the best for
last. This one's stinking cool. If you're like me, you're tired
of typing in your pseudo password. If only we could just use
our finger instead of pseudo.
And that's what this is. You can use your touch ID on your
MacBook as your pseudo password. Want to ask you for to do that, we'll
type in pseudo first, type in nano, and we're going to edit the file slash
et tc slash pam dotd slash pseudo. Put your pseudo password in for the last
time and just below that first comment, add this line off sufficient
pam underscore t i d dot. So control X, Y enter to save.
Hit. Okay, and let's see if it works. Let's try one of our commands from
earlier clearing our DNS cash. Here we go. That's killer. Best command
ever. Video over buy.
