jesstess

for path in /sys/devices/system/cpu/cpu*/cache/index*/
do
  echo $path;
  echo -n "Level: "; cat $path/level;
  echo -n "Type: "; cat $path/type;
  echo -n "Size: "; cat $path/size;
  echo -n "Cache line size: "; cat $path/coherency_line_size;
  echo -n "Associativity: "; cat $path/ways_of_associativity;
done

jesstess

/*
 * A minimal tracer. You can:
 * - attach to a running process or run a process under it.
 * - step through instructions.
 * - step through syscalls.
 * - generate a syscall summary.
 * - count and time the number of instructions executed.
 *
 * If you are generating a summary with 'ci' or 'cs', send SIGTSTP (Ctl-Z) to
 * pause the traced process and dump a summary (useful if you've attached to a

jesstess

#!/usr/bin/python

# Play music without any external files (ie you create the notes yourself)
# through /dev/dsp! Inspired by
# http://www.tldp.org/LDP/abs/html/devref1.html#MUSICSCR

def generate_notes():
    # See http://www.phy.mtu.edu/~suits/NoteFreqCalcs.html for details on
    # calculating the frequencies

jesstess

Where in an ELF executable do various types of strings live?

Inspired by "How to waste a lot of space without knowing": http://glandium.org/blog/?p=2361

Test file:

$ cat /tmp/test.c
char *ptr_global = "ptr_global_string";
char array_global[] = "array_global_string";

jesstess

import sys

scores = {"A": 1, "C": 3, "B": 3, "E": 1, "D": 2, "G": 2,
          "F": 4, "I": 1, "H": 4, "K": 5, "J": 8, "M": 3,
          "L": 1, "O": 1, "N": 1, "Q": 10, "P": 3, "S": 1,
          "R": 1, "U": 1, "T": 1, "W": 4, "V": 4, "Y": 4,
          "X": 8, "Z": 10}

# Get the Scrabble rack from the command line.
if len(sys.argv) < 2:

jesstess

http://addictivecode.org/FrequentlyAskedQuestions

To spider a site as a logged-in user:

1. post the form data (_every_ input with a name in the form, even if it doesn't have a value) required to log in (--post-data).
2. save the cookies that get generated (--save-cookies), including session cookies (--keep-session-cookies), which are not saved when --save-cookies alone is specified.
2. load the cookies, continue saving the session cookies, and recursively (-r) spider (--spider) the site, ignoring (-R) /logout.

# log in and save the cookies
wget --post-data='username=my_username&password=my_password&next=' --save-cookies=cookies.txt --keep-session-cookies https://foobar.com/login

jesstess

google.com
facebook.com
yahoo.com
youtube.com
live.com
wikipedia.org
blogger.com
baidu.com
msn.com
yahoo.co.jp

jesstess

Keith gave me the hook-up on turning NASA images into a high-quality movie. I had tried twiddling knobs starting from a basic ffmpeg incant:

ffmpeg -r 10 -i frame%03d.jpg frames.mov

but the movies looked terrible.

Keith said:

"""
Generally if you're making a movie out of separate frames, I prefer to use png2yuv and mpeg2enc from the mjpegtools package instead of ffmpeg -- it's pretty clean code designed for this task instead of an assemblage of random libraries.

jesstess

find . -not \( -name .git -prune \) -type f -print0 | xargs -0 sed -i 's/foo/bar/g'

jesstess

#!/usr/bin/python

from Growl import GrowlNotifier
import time
import sys
import os
import optparse

"""