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Sivaram Konanki trickster

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@earthgecko
earthgecko / bash.generate.random.alphanumeric.string.sh
Last active April 24, 2025 05:26
shell/bash generate random alphanumeric string
#!/bin/bash
# bash generate random alphanumeric string
#
# bash generate random 32 character alphanumeric string (upper and lowercase) and
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1
@datagrok
datagrok / git-serve.md
Last active April 21, 2023 07:33
How to easily launch a temporary one-off git server from any local repository, to enable a peer-to-peer git workflow.
@MLnick
MLnick / MovieSimilarities.scala
Created April 1, 2013 17:49
Movie Similarities with Spark
import spark.SparkContext
import SparkContext._
/**
* A port of [[http://blog.echen.me/2012/02/09/movie-recommendations-and-more-via-mapreduce-and-scalding/]]
* to Spark.
* Uses movie ratings data from MovieLens 100k dataset found at [[http://www.grouplens.org/node/73]]
*/
object MovieSimilarities {
@jamesmacaulay
jamesmacaulay / profiles.clj
Last active November 15, 2023 01:18
My ~/.lein/profiles.clj at the moment.
{:user {:dependencies [[org.clojure/tools.namespace "0.2.3"]
[spyscope "0.1.3"]
[criterium "0.4.1"]]
:injections [(require '(clojure.tools.namespace repl find))
; try/catch to workaround an issue where `lein repl` outside a project dir
; will not load reader literal definitions correctly:
(try (require 'spyscope.core)
(catch RuntimeException e))]
:plugins [[lein-pprint "1.1.1"]
[lein-beanstalk "0.2.6"]
@MikeInnes
MikeInnes / startup.jl
Last active April 28, 2025 14:51
Some useful macros for Julia
# Repeat an operation n times, e.g.
# @dotimes 100 println("hi")
macro dotimes(n, body)
quote
for i = 1:$(esc(n))
$(esc(body))
end
end
end
@shriphani
shriphani / gist:8675874
Last active June 24, 2023 02:45
Racket code for the little schemer
#lang racket
;; Code for the little schemer
(define (atom? x)
(and (not (pair? x))
(not (null? x))))
(define (lat? l)
(cond ((null? l) #t)
# Hello, and welcome to makefile basics.
#
# You will learn why `make` is so great, and why, despite its "weird" syntax,
# it is actually a highly expressive, efficient, and powerful way to build
# programs.
#
# Once you're done here, go to
# http://www.gnu.org/software/make/manual/make.html
# to learn SOOOO much more.
@gregsh
gregsh / - IDE Scripting.md
Last active August 6, 2025 14:53
IDE Scripting

Here are my attempts to script an IntelliJ-based IDE using javax.script.* API (ex-JSR-223).

The list of available scripting languages and engines:

  1. Groovy - built-in, via Groovy jars and <app>/lib/groovy-jsr223-xxx.jar
  2. JavaScript (Nashorn) - built-in, via Java Runtime <app>/jbr/... (deprecated and will be removed soon)
  3. JavaScript (GraalJS) - https://plugins.jetbrains.com/plugin/12548-intellij-scripting-javascript
  4. JPython - https://plugins.jetbrains.com/plugin/12471-intellij-scripting-python
  5. JRuby - https://plugins.jetbrains.com/plugin/12549-intellij-scripting-ruby
  6. Clojure - https://plugins.jetbrains.com/plugin/12469-intellij-scripting-clojure
@seanjensengrey
seanjensengrey / rust-python-cffi.md
Last active January 13, 2025 02:04
Calling Rust from Python/PyPy using CFFI (C Foreign Function Interface)

This is a small demo of how to create a library in Rust and call it from Python (both CPython and PyPy) using the CFFI instead of ctypes.

Based on http://harkablog.com/calling-rust-from-c-and-python.html (dead) which used ctypes

CFFI is nice because:

  • Reads C declarations (parses headers)
  • Works in both CPython and PyPy (included with PyPy)
  • Lower call overhead than ctypes
#!/usr/bin/env elixir
defmodule Committer do
defstruct [:name, :email]
def list(repo) do
repo
|> from_repo
|> Stream.unfold(fn str ->
case String.split(str, "\n", parts: 2, trim: true) do