greymd

#!/bin/bash
# From: https://twitter.com/grethlen/status/906154326975905793

sudo ping -i 0 -c 1400 pong4.kooshin.net \
  | grep -oP "icmp_seq=\K\d+" \
  | cat - <(seq 1 1400) \
  | sort -n \
  | uniq -c \
  | awk '{printf $1}' \
  | fold -w70 \

greymd

import java.util.stream.IntStream;

class Main {
    public static void main(String args[]) {
        IntStream.rangeClosed(2, 100)
            .filter(i -> IntStream.rangeClosed(2, (int)Math.sqrt(i))
                    .allMatch(j -> i%j != 0))
            .forEach(n -> {
                System.out.println(n);
            });

greymd

Perl書くくせにpack/unpackの動作が全然わからなかったため休日に少し練習。 以下、チラシの裏程度のメモ書き。校正しておらず、自分が思いついた思考の順序で一発書きしたもの。 たぶん間違えた内容を含んでます。

pack

packは、引数に配列、あるいは文字列を受け取って、それを規則に従ってバイナリに変換する。

入力: 配列 or 文字列 出力: バイナリ

greymd

base64sh() {
    local input=${1:-$(cat)}
    paste <(seq 0 63 | sed 's/^/obase=2;ibase=10;/' | bc | sed 's/^/00000/' | grep -oE '.{6}$') \
    <(echo {A..Z} {a..z} {0..9} + / | xargs -n 1) | \
    awk '{print "s|"$1"|"$2"|"}' | \
    sed -f - <(echo -n $input| perl -ne 'print unpack("B*", $_)."0000"' | \
    fold -w 6 | grep -oE '.{6}$') | tr -d '\n' | fold -w 4 | sed 's/$/===/' | grep -oE '^.{4}' | tr -d '\n' | awk 1
}

# Usage: base64sh

greymd

" Clipboard integration by Operating System Controls from Vim

" Usage:
"  Yank something and run :OscCopy
"       or
"  Copy range in visual mode and run :'<,'>OscCopyRange

" From: https://stackoverflow.com/questions/1533565/how-to-get-visually-selected-text-in-vimscript
function! GetVisualSelection()
    let [lnum1, col1] = getpos("'<")[1:2]

greymd

import UIKit
import PlaygroundSupport

class MyViewController : UIViewController {

    override func viewDidLoad() {
        view.backgroundColor = .white
        let s1 = generateLabel()
        let s2 = generateLabel()
        let s3 = generateLabel()

greymd

import UIKit
import PlaygroundSupport

class MyViewController : UIViewController {
    var label:UILabel!
    var label2:UILabel!
    let gap:CGFloat = 50
    let rep:Float = Float.infinity
    let shape:CAShapeLayer = {
        return CAShapeLayer()

greymd

; ひねくれた方法な気がする。

(map
    3#(match [%1 %2 %3] something {
      [[_ ,0 ,0] FizzBuzz]
      [[_ ,0 _] Fizz]
      [[_ _ ,0] Buzz]
      [[$i _ _] i]})
        (map 1#[%1 (modulo %1 3) (modulo %1 5)] (take 100 nats)))

greymd

# Input is like {"command":"bHMgLWFsIHwgZ3JlcCBob2dlaG9nZQo="}
function handler () {
    EVENT_DATA="$1"
    local _cmd
    local _tmpdir
    _cmd="$(tr -d '[:space:]' <<<"$EVENT_DATA" | sed -E "s/\{[\"']command[\"']:[\"']([0-9A-Za-z+/=]*)[\"']\}/\1/" | base64 --decode)"
    _tmpdir="$(mktemp)"
    eval "$_cmd" 2> "$_tmpdir-stderr" > "$_tmpdir-stdout" || true
    echo "{\"stdout\": \"$(cat "$_tmpdir-stdout" | base64 | tr -d '\n')\", \"stderr\": \"$(cat "$_tmpdir-stderr" | base64 | tr -d '\n')\"}" || true
    rm -rf "$_tmpdir-stderr" "$_tmpdir-stdout" "$_tmpdir"

greymd

#!/bin/bash
ceiling () {
  local divide="$1";shift
  local by="$1"
  printf "%s\\n" $(( ( divide + by - 1 ) / by ))
}

equalized_partition_nums () {
  local number="$1";shift
  local count="$1"