proger

kai% seq 10 | awk '{a+=$0} END{print a}'                                   
55
kai% seq 10 | perl -ne '$s+=$_; END {print $s}'
55
kai% seq 10 | perl -e 'while (<>) { $s += $_ }; print $s'                              
55
kai% seq 10 | ruby -e 'BEGIN{a=0;}' -ne 'a += $_.to_i;' -e 'END{ puts a}'              
55
kai% seq 10 | ghc -e 'getContents >>= return . sum . map (\x -> read x :: Int) . lines'
55

proger

[ a = a ] && {
	false
} || {
	echo haha falltrough
}

proger

% cat t.sh                                                                                                  ~
#!/bin/sh

test -c /dev/stdin && echo "char"
test -p /dev/stdin && echo "named pipe"
test -S /dev/stdin && echo "socket"
test ! -f /dev/stdin && echo "not regular"
test -f /dev/stdin && echo "regular"
% sh ./t.sh                                                                                                 ~
char

proger

Process:         Xcode [24529]
Path:            /Applications/Xcode45-DP3.app/Contents/MacOS/Xcode
Architecture:    x86_64
Parent:          launchd [359]
UID:             501
Sudden Term:     Dirty
Task size:       88682 pages
CPU Time:        8.897s

  Thread 0x52e79    DispatchQueue 1          priority <multiple> cpu time   8.895s

proger

% sudo dtrace -Cs ~/dev/darwin/trace/execsnoop.real.d
[2075->2076] /Library/RubyMotion/bin/deploy 
[2076->2077] sh -c open http://www.youtube.com/watch?v=1orMXD_Ijbs&feature=fvst 

proger

-- finally got to the fact that List is also a monad and it's great

Prelude> replicate 2 [1,2,3]
[[1,2,3],[1,2,3]]
Prelude> :t replicate
replicate :: Int -> a -> [a]
Prelude> :m Control.Monad
Prelude Control.Monad> :t replicateM
replicateM :: Monad m => Int -> m a -> m [a]
Prelude Control.Monad> replicateM 2 [1,2,3]

proger

DTrace Sessions for iOS Development

DTrace is a comprehensive dynamic tracing framework created by Sun Microsystems for troubleshooting kernel and application problems on production systems in real time. Originally developed for Solaris, it has since been released to open source community in 2004 and has been ported to several other Unix systems.

Apple ported DTrace for OS X Leopard, including a GUI called Instruments and made it co-exist with the existing legacy stack of performance troubleshooting toolkits.

We are going to tame this beast to help us hunt down and eliminate all sorts of application and system-wide troubles when doing development of iOS and OS X apps.

the chat

proger

     

               try {
                    OtpConnection nconn = self.accept();
                } catch (Exception ex) {
                    ex.printStackTrace();
                    break;
                }

                ConnectionConsumer listener;

proger

//
//  Specific Crash Example.m
//  Specific Crash Example.m
//
//  Created by Paul Taykalo on 09/01/12.
//  Copyright (c) 2012 Stanfy LLC. All rights reserved.
//

#import "ACAppDelegate.h"

proger

import sys
import os
from glob import glob
from datetime import datetime
import requests
import lxml.etree

savedir = os.path.dirname(__file__)
savepath = lambda date: os.path.join(savedir, 'check_%s' % date)
savepathnow = lambda: savepath(datetime.now().strftime('%s'))