henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

jexchan

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

chetmancini

def countLinesOfCode(path):
    """Procedure to count total lines of code in each file
    """
    total = 0
    listing = os.listdir(path)
    for fname in listing:
        if fname[-2:] == "py":
            with open(fname) as f:
                for i, l in enumerate(f):
                    if len(l) > 80:

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

clvrobj

# -*- coding: utf-8 -*-
import sys
import os
import fnmatch

def Walk(root='.', recurse=True, pattern='*'):
    """
    Generator for walking a directory tree.
    Starts at specified root folder, returning files
    that match our pattern. Optionally will also

dgolds

#!/bin/bash
# Bash Script to do quick counts of common source code types under the current or specified directory
# https://gist.github.com/3901863

# To quickly grab it, just type
# wget https://gist.github.com/raw/3901863/dgSniffCode.sh && chmod +x dgSniffCode.sh

# Features to add: 
#   multiple params ...A hack until I support * arguments:  ls | xargs -L 1 ~/dgSniffCode

fyears

#!/usr/bin/env python
# -*- coding: utf-8 -*-

'''
usage:
cat about.txt | python soinput.py
'''

import sys

sturadnidge

# download latest libevent2 and tmux sources, and extract them somewhere
# (thx bluejedi for tip on latest tmux URL)
#
# at the time of writing:
# https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
# http://sourceforge.net/projects/tmux/files/latest/download?source=files
# 

# install deps
yum install gcc kernel-devel make ncurses-devel