deepcube

#!/usr/bin/env bash
# solve Rubik's cube using the Tperm blindfold method. input: http://tomas.rokicki.com/cubecontest/
# idea from Stefan Pochmann's second entry: http://tomas.rokicki.com/cubecontest/winners.html
n=0 tperm="R2 U' R2 D B2 L2 U L2 D' B2 U  "
cube=("$@") solved=(UF UR UB UL DF DR DB DL FR FL BR BL UFR URB UBL ULF DRF DFL DLB DBR)
declare -A inverse=([\']=\  [2]=2 [\ ]=\') setups=(
[UF]="R2 U  R2 "           [UR]=""                [UB]="R2 U' R2 "     [UL]=""
[DF]="D' L2 "              [DR]="D2 L2 "          [DB]="D  L2 "        [DL]="L2 "
[FR]="U2 R  U2 "           [FL]="L' "             [BR]="U2 R' U2 "     [BL]="L  "
[FU]="R  F' L' R' "        [RU]=""                [BU]="R' B  L  R  "  [LU]="L  F' D' F  L2 "

dualbus

#!/bin/bash

save=$(bind -p; bind -X)
function clean-up {
    bind -r '\C-i'
    bind -f /dev/stdin <<< "$save"
}
trap 'clean-up' RETURN

function write-options {

vivithemage

#include <stdio.h>
#include <magic.h>

int main(void)
{
    char *actual_file = "/file/you/want.yay";
    const char *magic_full;
    magic_t magic_cookie;
	
    /* MAGIC_MIME tells magic to return a mime of the file, 

sshaw

Internal Bash functions, useful when writing loadable builtins

• Find an environment variable
• Set an environment variable to a string value
• Set an environment variable to a string value if it's not already set
• Check if an environment variable is set
• Check if an environment variable is an array
• Get an environment variable that's an array
• Unset an environment variable
• Create an array

Keith-S-Thompson

korn.c is the "Best One Liner" winner of the 1987 International Obfuscated C Code Contest, by David Korn (yes, the author of the Korn Shell).

korn.hint, as the name implies, offers some hints.

A commenter on Stack Overflow asked for some clarification. I didn't want to post spoilers on the site, so I'm posting them here instead. If you haven't already (and if you're familiar with the rules of C) I encourage you to study the program for a while first.

=====

Here's the code: