digikata

use polars::prelude::*;

fn main() {
    let df = df!["foo" => ["A", "A", "B", "B", "C"], "val1" => [10, 20, 20, 45, 200], "val2" => [1, 2, 2, 4, 2], ].unwrap();

    let ratio = (col("val1") / col("val2")).alias("ratio");

    let df2 = df.lazy().with_column(ratio);
    let out = df2.collect().unwrap();
    println!("{out}");

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ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

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Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

[ Update 2020-05-31: I won't be maintaining this page or responding to comments anymore. The list of supporting software reflects the known state as of this date. ]

---

Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

digikata

flowchart LR
id

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#!/bin/bash

# https://fedoraproject.org/wiki/GRUB_2#Create_a_boot_menu_entry

# list the default, set a default then apply the setting int othe grub config
# reboot should cause the default kernel boot selection to boot on many
# recent fedora systems

# list grub entries
grlist() {

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// Here is an extremely simple version of work scheduling for multiple
// processors.
//
// The Problem: 
//  We have a lot of numbers that need to be math'ed. Doing this on one 
//  CPU core is slow. We have 4 CPU cores. We would thus like to use those
//  cores to do math, because it will be a little less slow (ideally
//  4 times faster actually).
//
// The Solution:

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#!/usr/bin/env ruby

latest = nil
Dir.glob('sublime_text_3_build*.bz2').each do |f|
	puts f
	if latest.nil? || (f > latest)
		latest = f
	end
end

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// println!() calls print!() internally, so that's the only macro we have to
// override
macro_rules! print (
    // The extra scope is necessary so we don't leak imports
    ($($arg:tt)*) => ({
        // The `write!()` macro is written so it can use `std::io::Write`
        // or `std::fmt::Write`, this import sets which to use
        use std::io::{self, Write};
        if let Err(e) = write!(io::stdout(), $($arg)*) {
            // Optionally write the error to stderr

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@-moz-document url-prefix(https://news.ycombinator.com) {
    .comment {
        font-family: Alegreya, serif !important;
        font-size: 15pt !important;
    }

    .comment code {
        font-family: Inconsolata-g, fixed !important;
        font-size: 10pt !important;
    }

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#!/bin/bash
# Author: Khaja Minhajuddin (A.Chen modified...)
# Wait for go files to be modified and then execute them
# Dependency: inotify-tools
# Install on ubuntu using: apt-get install inotify-tools

fpath=$1
cmd=$2
wdir=`pwd`
gspec="^$fpath\$"