- Now it's time to work on our shell access.

So what I've always done prior to this video

is use just the built-in terminal that comes with Mac OSX,

and I kind of don't need very much more than that

because I am not that sophisticated.

I just type basic Git commands or node commands in there,

but I have learned recently that

there is a particular application called iTerm.

Let me pull up the URL for that.

And this is a Mac OSX terminal replacement.

There are equivalent terminal replacements for Windows.

I'll try to include some links in the video description

when I get good suggestions.

And you can see that it has a lot of extra features.

It's free.

I believe it's, I don't know if it's open source.

That would be an interesting question.

There's a bug tracker, and it is,

it looks like it's licensed under GPL version two.

Okay, great.

So I encourage you to kind of click through

and look at the different features.

But really it's just has a lot of customization

for searching, for hotkeys, for that kind of stuff.

So it has more features.

We'll see that as I use it.

So I have that here.

Now, something that I've always wanted,

I look over other programmers and I see their console,

and it's all like color coded.

And if they use Git, maybe you don't know what Git is,

but you're learning about it.

It says things like you're in a Git repository

and what branch you're in in that repository,

just gives you information as you're going.

So there's many ways to configure your terminal

in terms of styles and transparency and color

and features and what you can type.

Something that I learned about recently is a shell.

So by the way, this shell that it's

running right now is bash.

Bash is the default shell of Mac OSX.

And remember when I was talking about

this important concept called PATH.

When you start a shell it's going to load the PATH

from the configuration files for that shell,

and I'm realizing something.

I'm going to show you a completely

different way to live your life.

I apologize for this being so Mac OSX specific,

but one of the things that you want,

the Mac doesn't want you to like get

into your actual configuration files by default.

If I go here it just wants me to look at my recent files

or things people are AirDropping at me.

I don't want to do that.

(laughing)

I want to get to my user home directory

which has all this configuration stuff.

So one thing I could do if I'm in the terminal prompt

and I know I need to configure it still

I type, I can type pwd and I can see, ah,

this is the directory that I'm currently in

in the terminal, in the console.

I'm in Users/temporarytrain.

This is actually where I want to be.

That's where all the user configuration stuff for me,

the temporarytrain, that particular login

of this computer is.

So I can now say open dot,

and it's going to open that directory in the Finder.

And look at this.

But there's not, there's just,

this is not a way to live.

(laughing)

Look at all this.

There's a list of all this stuff here.

But there's all these files that are hidden.

And those files that are hidden

are things that are actually controlling your PATH

for when you get stuck and need

to fix your Python configuration

because this is broken or that is broken.

You need to get into those files.

So something that you can do is if I just Google

like show hidden files Mac

I'm going to see this nice little command here,

defaults write com.apple.finder Apple,

I can do this.

And I can go in here.

I can put that in.

And then if I go back to the Finder,

I'm not going to see the hidden files,

and I apologize this is so low.

There might be a way for me to make this bigger.

I'm not going to worry about that right now.

I can just zoom into it.

What I need to do is relaunch the Finder.

So I can do command option escape

and then here click on relaunch.

It's going to relaunch the Finder.

And then I can come back here

and I can hit open again.

And suddenly look at all this stuff,

.vscode, all the configuration stuff

for vscode and the extensions,

that's actually where it is.

.npm, these are all where my user,

or my global but user, anyway,

all the node configuration stuff is, .config.

And this, by the way, .bash_history.

The current shell that I'm using is called bash.

So everything that I've ever typed in,

within reason, is in here, bash_sessions.

And what I'm looking for is bash profile or .profile.

I think it doesn't exist yet, maybe by default.

But there's usually a profile file

that has a lot of PATH settings and different things

for when you start up.

So now it's time that I've shown you this,

time for me to install a different,

I'm going to use a different shell.

Instead of bash I'm going to use one called zsh.

So if I look,

and by the way, googling it the first thing

I come up with is Oh My Zsh,

as well as livestream of The Coding Train

from four hours ago.

Have I really been doing it this long?

Oh my god, and a bunch of other videos

that are probably better than mine.

So I encourage you to find out more information about zsh.

A really easy way to install it is

through this tool called Oh My ZSH,

and I can actually just scroll down here

and get it, this website changed since yesterday.

I can grab this command.

This is a special command to run a curl.

A curl is a way of grabbing a file.

And the file that I'm going to grab is a shell script,

install.sh, and sh is going to execute it.

So this is basically like grabbing someone's

shell script from GitHub and executing it.

So you want to be careful when you do this kind of stuff.

But I'm going to trust Oh My ZSH, why am I saying c?

And I'm going to run it.

Oh no, sh command not found?

Oh, you know what it is?

Sorry everybody, this is very tricky.

You got to be careful here.

I added an extra.

I copy pasted it with the dollar sign.

That's not good.

So it's not going to be able to run it.

So I thought like oh maybe I'm missing something,

but I've got to really get it only,

I just want to copy and paste this part.

Easy to make these kind of mistakes.

And by the way I'm hitting command k a lot,

which clears the console.

So now we try this.

Wget was not found?

That's weird that I don't have wget.

Oh, right, I meant to do it with curl.

Curl is a thing that I have.

So now I'm going to do that.

There we go.

It's running.

Okay, so it needs to do some stuff to my computer

that I need to give it authorization for.

So I need to type in my password,

which I have none for this temporary account,

but you should have a password, you should never do this.

I'm going to delete this user after this video is over.

Empty passwords are not allowed.

I'll be right back.

(clapping)

Okay, I'm back.

I changed and I made a password.

So let me try running that again.

I already have it installed.

Hmm.

But it didn't actually work.

This is a thing that you won't run into,

but I might as well keep it in

because these are the kinds of things that happen.

Let's try removing it.

So,

look at this, this is actually easy

because I've already enabled my,

I've already enabled my hidden files.

So I can actually just go right here.

If I hadn't done that I wouldn't be able to find this.

And I can hit delete.

So I'm just going to delete that.

That's uninstalling it.

And now I should be able to do this again.

And it's running it.

It wants my password.

Now it got my password and boom,

all the sudden Oh My ZSH,

things are color coded.

Look at this, I've got this beautiful little green arrow

and this nice little blue tilde.

Woops, I don't know where I went just now.

And now, ah, sorry.

iTerm come back.

I now have iTerm and I am running zsh.

Now notice this has changed it for the computer.

I didn't link it to iTerm.

If I go and run my terminal I'm also now running using zsh.

And you can switch back to bash

and there's all sorts of ways to do that,

but I'm not going to bother.

I'm happy with zsh.

And it comes with, Oh My ZSH comes

with a kind of default theme and set of configurations.

I would love to maybe at some point go into more,

and I'm sure a lot of you can write in the comments

little tips and tricks of things you love to use,

but I'm just going to, enjoy the wonder of the internet

and get all of this stuff made for free.

Oh My ZSH is Z shell, it stands for Z shell,

so I should say Z shell.

Okay, so one thing that I really want to do

which has nothing to do with Z shell

is that I want to go into the preferences

and I'm going to go under profiles and under text,

and there's all these sort of things you can configure,

but I'm just going to change the font

to something much bigger so on The Coding Train

people can see it.

Let's make it 36.

That's probably too big but it never hurts.

And there we go.

So already things look different.

Let's look at some things that are new.

So I can still type pwd and I can see this is where I am.

I can also type cd.

Now most terminal shells will have things

like autofill if you hit tab.

This configuration has kind of a wonderful thing

where if I hit tab it actually shows me all of the options.

Like and I can actually tab through them.

So I want a cd Desktop.

So now I'm on the desktop, look it's showing me where I am.

Now I can hit ls and I can see sketch.js.

I can still say code sketch.js,

and it filled it in but if I'd gone code

I can see like oh look at this,

it's trying to figure out things that I might want to say.

Anyway, I'm not that experienced with this,