An analog clock in your bash prompt on OS X

#1

Post by psm42 » Wed, Apr 17, 2013, 11:37 PM UTC

An analog clock in your bash prompt on OS X
github.com

Re: An analog clock in your bash prompt on OS X

#2

Post by imsofuture » Thu, Apr 18, 2013, 12:21 AM UTC

This is cutesy, but having a timestamp on your prompt is an easy-to-implement sometimes-lifesaver. Highly recommended, one way or another :)

Re: An analog clock in your bash prompt on OS X

#3

Post by scottw » Thu, Apr 18, 2013, 12:36 AM UTC

Is there a particular font that works better than others for this? I've tried all my fixed width fonts and the clock is barely readable in any of them.

Re: An analog clock in your bash prompt on OS X

#4

Post by [deleted] » Thu, Apr 18, 2013, 12:38 AM UTC

[deleted]

Re: An analog clock in your bash prompt on OS X

#5

Post by psm42 » Thu, Apr 18, 2013, 12:38 AM UTC

scottw wrote: post #3

Is there a particular font that works better than others for this? I've tried all my fixed width fonts and the clock is barely readable in any of them.

I use Source Code Pro. Consolas used to be my favorite.

Re: An analog clock in your bash prompt on OS X

#6

Post by jnxfgf456 » Thu, Apr 18, 2013, 12:58 AM UTC

It's a digital clock.

Re: An analog clock in your bash prompt on OS X

#7

Post by wging » Thu, Apr 18, 2013, 1:07 AM UTC

imsofuture wrote: post #2

This is cutesy, but having a timestamp on your prompt is an easy-to-implement sometimes-lifesaver. Highly recommended, one way or another :)

>one way or another

Speaking of another:

    export PS1="\t $"

For a lot more information on bash prompts, I'd recommend http://blog.sanctum.geek.nz/bash-prompts/

Re: An analog clock in your bash prompt on OS X

#8

Post by sethhochberg » Thu, Apr 18, 2013, 1:15 AM UTC

imsofuture wrote: post #2

This is cutesy, but having a timestamp on your prompt is an easy-to-implement sometimes-lifesaver. Highly recommended, one way or another :)

Out of curiosity, could you describe a scenario where you'd consider time-stamping like that to be a lifesaver?

Re: An analog clock in your bash prompt on OS X

#9

Post by Sephr » Thu, Apr 18, 2013, 1:37 AM UTC

That is a lot of if statements just to get some directly adjacent unicode characters, which can easily be generated with some simple math.

This solution may be a little terse (96 bytes; I wrote it for the 140bytes golfing challenge), but it should help explain how to get the current time's clock character: https://gist.github.com/eligrey/985721#file-annotated-js

Re: An analog clock in your bash prompt on OS X

#10

Post by chch » Thu, Apr 18, 2013, 1:42 AM UTC

Instead of using a very long set of If statements, I think you could just use something like

    a=$((`date +%M`/15));b=$((128335 + `date +%l` +((a*(a**2-39*a+110))/6)));printf '%x' $b;

and print the resulting hex's character, no?

(I'd finish off the code myself, but I have a bus to catch)

Edit: Ah, I see Sephr came prepared. ;)