Lighter Color Mac OS

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Okay, so I just spent the better part of 2 hours bashing my head into a wall trying to get ls to color properly. If you're not with me now, probably skip the rest of this post as it's aimed at my geek followers.
In a hurry? I'll recap my solution in the summary.
Okay, so I'm browsing around in my terminal when I run `ls /dev`. Turns out that directory is full of files of type ‘block special character' and ‘character special file'. Well, it just so happens that my color scheme that I've struggled a lot with shows these as grey text on a yellow or light blue background, respectively. The net is that the files are totally unreadable.
So, I of course try to fix this, find my entry for LS_COLORS in my .zshrc file, and away I go … or not. First of all, I've never editing the LS_COLORS before, I've always just stolen one from somewhere else. Here's what I had:
Looks great! Except that somewhere in that mess are a couple of numbers messing up my color scheme. So, first up: how does that work? The extensions are kind of easy to reason out, but then there are some special, two-letter patterns at the beginning. Well, ‘bd' is the type I was looking for (the ‘block special character'). I figured that out after finding this.
Oh, and backing up for a minute, I knew the offending files' types by looking up the first character of ‘ls -l'. Here's the section of the ls man page for reference:

Custom colors: Custom color control, click the time of day you want to change and then drag the slider to your preferred color temperature. Classic f.lux: At sunset, f.lux will fade to 3400K, and turn off at sunrise. For large screens this setting is probably not strong enough to remove all alerting light. Setting up a color profile. You probably already know that you can customize the Mac Terminal to death, and you may even have noticed that you can create different profiles for different purposes: What you can do is, you can create a separate profile for your Powershell Core stuff, customize all those colors, fonts, and what-not. In macOS 10.14 and later, users can choose to adopt a dark system-wide appearance instead of a light appearance. In Dark Mode, the system adopts a darker color palette for all windows, views, menus, and controls.

So, as an example, both these entries are diretories, wich you can tell from teh first character:
Anyway, back to the frustrat–err, learning experience. So, I start mucking around with the LS_COLORS variables, and can't get changes to take. I progressively make more and more drastic changes, open a new shell, only to see that the colorscheme remains the same.
An hour later, I'm now discovering a new-fangled os x style of color codes, which really just looks like a glob of letters:
Well, how to set this all up is in the ls man pages, but nothing seems to be working for me. Here's the relevant section from the ls man page:
Okay, so, looks like I have all the pieces, but I'm still really struggling when I had the ‘aha' moment — I'm using screen. screen doesn't reevaluate terminal colors each time you run zsh the way a terminal does. I got onto this line of thought after reading an article from macworld.
Once I went back to a raw terminal to test my changes, I was good to go. When I restarted screen, it picked up my colors from the terminal, and now I'm good.
I ended up using pretty normal colors for the file types that were giving me problems:

My zshrc is almost completely platform independent, but I doubt this is very portable. Maybe I'll come back to it.

Summary

So, inclusion:
  • Exit screen before messing with colors
  • Read the ls man page to make sure that you're:
    • changing the correct variable (LSCOLORS in Mac OS X)
    • representing your desired colors in the desired format

As always, you can find my current shell setup files on github.

About softwaregravy

Software Engineer, aspiring financial guru, and entrepreneur; all mixed with a bit of awesome.
This entry was posted in Uncategorized and tagged liux, lscolors, ls_colors, mac, os x, shell, zshrc. Bookmark the permalink.

I just recently had the opportunity to sit with Aaron Nelson and go through some really cool Powershell features, and I'm certainly going to spend time getting to know Powershell a lot better. If you didn't know, Powershell isn't exclusive to Windows anymore – you can actually run a basic set of Powershell features, called Powershell Core, on Mac OS and Linux as well.

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But there's a problem.

By default, running the 'pwsh' command just starts Powershell Core in a regular terminal window. The first thing you'll notice is that this doesn't really play well if you're using a white background, as the output is often light grey, yellow or even white.

Sandworm storm mac os. So wouldn't it be cool if we could launch our Powershell Core in the stylish blue world of bliss that Windows users have become so accustomed to?

Setting up a color profile

You probably already know that you can customize the Mac Terminal to death, and you may even have noticed that you can create different profiles for different purposes:

What you can do is, you can create a separate profile for your Powershell Core stuff, customize all those colors, fonts, and what-not. But here's where it gets funkier:

You can set a custom command to start when you open a terminal window with this profile: enter pwsh Boxer mac os. in the 'Run command' field at the top, and now, every time you open a window with this profile, it starts Powershell Core automatically, saving you all of five keystrokes.

Kit kat badger hunt mac os. The 'Run inside shell' checkbox needs to be enabled!

In fact, you may even want to put 'pwsh; exit' (without the quotes) in the 'Run command' field – this will terminate the bash shell automatically when the pwsh process ends, so typing 'exit' in Powershell will close the window.

Another slight annoyance is that when you want to close the window, technically the 'pwsh' process is still running (unless you type 'exit'), so you'll get a friendly confirmation dialog that you'll have to deal with:

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To make this window go away, and save you another five keystrokes, look at the bottom of the 'Shell' tab of the 'Preferences' window, in the 'Ask when closing' section. If you add 'pwsh' to that list of applications, the terminal won't ask you for confirmation if you want to close the window.

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Obviously, that warning is there for a reason, so it's really your call if you want to do this.

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The result

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Now, when you open Terminal, you can select 'New Window' -> 'Powershell' from the 'Shell' menu…

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… and voilà:





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