greymd

## original:
## https://twitter.com/hid_tori/status/1221415626465349635
## https://twitter.com/hid_tori/status/1221415683289780225
## https://twitter.com/hid_tori/status/1221415737375412224
## https://twitter.com/hid_tori/status/1221415770795728898

cat sudoku | node -e 'console.log((f=>(u=>u(u))(x=>f(y=>x(x)(y))))(f=>a=>((a,b)=>a.map(x=>x[3]).includes("*")?f(a.map(x=>x[3]!=="*"?x:[...x.slice(0,4),[...Array(9)].map((v,i)=>String(i+1)).filter(y=>!b[0][x[0]].concat(b[1][x[1]]).concat(b[2][x[2]]).includes(y))]).map(x=>x.length===4?x:x[4].length===1?[x[0],x[1],x[2],x[4][0]]:x.slice(0,4))):a)(a,a.reduce((x,y)=>(x[0][y[0]].push(y[3]),x[1][y[1]].push(y[3]),x[2][y[2]].push(y[3]),x),[...Array(3)].map(x=>[...Array(9)].map(y=>[]))).map(x=>x.map(y=>y.filter(z=>z!=="*")))))(require("fs").readFileSync("/dev/stdin","utf8").trim().split("\n").map((v,i)=>[i,v]).map(x=>[x[0],[...x[1].split("").entries()]]).flatMap(x=>x[1].map(y=>[x[0],...y])).map(x=>[x[0],x[1],Math.floor(x[0]/3)%3*3+Math.floor(x[1]/3),x[2]])).reduce((x,y)=>(x[

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 \

hyuki0000

MacでJavaScript

参照

• http://qiita.com/zakuroishikuro/items/1b02378bf9e940602d87
• http://qiita.com/zakuroishikuro/items/afab0e33ad2030ba2f92

ryuichiueda

#!/bin/bash

###文献リスト###
cat ../rpim_book.bbl		|
grep '^\\bibitem'		|
sed 's/bibitem/cite/'		|
awk '{print "s/\\"$1"/["NR"]/g"}'	> ./cite.sed

cat ../rpim_book.bbl		|
sed 's/bibitem/cite/'		|

greymd

# ruby
$ time bash -c 'ruby -e "print 12345**54321"' >/dev/null
bash -c 'ruby -e "print 12345**54321"' > /dev/null  0.57s user 0.37s system 91% cpu 1.027 total

# bc
$ time bash -c 'echo "12345^54321" | bc' >/dev/null
bash -c 'echo "12345^54321" | bc' > /dev/null  3.15s user 0.06s system 81% cpu 3.942 total

# python
$ time bash -c 'echo "print pow(12345,54321)" | python' >/dev/null

MasWag

887c887
< 	sp->dval = ((double) value) / RAND_MAX;
---
> 	sp->dval = ((double) value) / (unsigned long)(MAWK_RAND_MAX);

kunst1080

seq 1 99999999999 | awk '{
  for(i=1;i<=11;i++){
    a=int($0/(10^(i-1)));
    b=a-int(a/10)*10;
    if(i<=6){
      sum+=b*(i+1)
    } else {
      sum+=b*(i-5)
    }
  };

ttdoda

#!/usr/bin/env ruby
# encoding: ascii-8bit
#
# 端末の漢字コード設定判別のサンプルスクリプト
#
# コンセプトとしてはUTF-8, EUC-JP, Shift_JISのどれと解釈しても正しい、
# しかしどのエンコーディングとして解釈したかで端末での表示幅が変わる
# バイト列を送信し、その時のカーソル位置で端末がどのエンコーディング
# として解釈したかを判別する。
#

s-hiiragi

# @name  get_termsize.rb
# @desc  端末のサイズ(列数,行数)を取得

=begin

man
http://linuxjm.sourceforge.jp/html/LDP_man-pages/man4/tty_ioctl.4.html


/usr/include/sys/termios.h

valvallow

#!/usr/local/bin/gosh

(use gauche.parseopt)
(use gauche.process)
(use srfi-1)
(use srfi-13)

(define (usage cmd)
  (print "usage: " cmd " [option] ... input")
  (print " options:")