maeharin

#include <stdio.h>
 
int main(void)
{
  int x = 1;
  int *p = &x; 
 
  printf("%d\n", x); 
  printf("%p\n", &x);
  printf("%d\n", *&x);

maeharin

# directory name
ls -laF | ruby -e '$stdin.read.scan(%r![\S]+/!) {|m| puts m}'
# or
ls -laF | ruby -ne 'puts $_.split("\s")[8]'

maeharin

ruby -r open-uri -e 'open("http://uni.2ch.net/newsplus/") {|f| puts f.read.scan(/<a.+?>\d+?:\s(.+?)</)}' | nkf -w

maeharin

ruby -r open-uri -e 'open("http://b.hatena.ne.jp/hotentry") {|f| puts f.read.scan(/entry-link.+?>(.+?)</)}' | sed -e "s/続きを読む//g"

maeharin

ruby -r open-uri -e 'open("http://www.yahoo.co.jp") {|f| puts f.read.scan(/topics.+?>(.+?)</)}'

maeharin

ruby -r pp -e 'pp ENV.to_hash'

maeharin

#coding: utf-8                                                                                                                             

class M1
    def initialize(app)
        @app = app 
    end 

    def call(env)
        env = env + '1' 
        res = @app.call(env)

maeharin

ruby -ane 'puts $F[0]' hoge.txt > hoge2.txt

maeharin

find ./ -name 'filename'
grep -irs 'query' ./

maeharin

<?php

class C
{
    public function foo() {
        echo "foo";
    }                                                                                                                                                                               
}

$c = new C();