All catonmat articles

The archive contains 241 posts:

I published another 10 of my projects to GitHub
1 comment
7,111 views
April 11, 2013
A Simple LD_PRELOAD Tutorial
2 comments
5,659 views
March 31, 2013
Visualization of Regular Expression Character Classes
3 comments
11,317 views
February 25, 2013
TCP Traceroute
9 comments
36,872 views
February 24, 2013
Browserling now has Internet Explorer 10!
6 comments
9,026 views
January 22, 2013
Idea for later - a 1:1 teaching meetup network
11 comments
10,752 views
January 21, 2013
How to write Testling-CI tests
5 comments
11,995 views
January 18, 2013
Announcing Testling-CI
2 comments
19,726 views
January 16, 2013
The `sudo chroot /chroot su - user -c "cmd args"` trick
27 comments
20,920 views
December 24, 2012
Bash One-Liners Explained, Part V: Navigating around
14 comments
51,316 views
November 27, 2012
My favorite regex of all time
68 comments
114,941 views
November 12, 2012
Monthly Catonmat Geek T-Shirt #2: a.pipe(b).pipe(a)
3 comments
10,929 views
November 01, 2012
ASCII bit trick to convert lowercase to uppercase and back
9 comments
17,774 views
October 22, 2012
Browserling reaches 200 paying customers!
7 comments
12,932 views
October 16, 2012
Bash One-Liners Explained, Part IV: Working with history
15 comments
20,500 views
October 12, 2012
Announcing Monthly Catonmat Geek T-Shirts
1 comment
10,364 views
October 01, 2012
Bash Redirections Cheat Sheet
8 comments
41,823 views
September 10, 2012
Util-Linux Cheat Sheet
8 comments
38,847 views
September 07, 2012
GNU Coreutils Cheat Sheet
6 comments
48,226 views
September 04, 2012
TCP Port Scanner in Bash
20 comments
37,969 views
August 28, 2012
Bash One-Liners Explained, Part III: All about redirections
30 comments
41,684 views
August 23, 2012
Five Years of Blogging
22 comments
12,607 views
July 14, 2012
Bash One-Liners Explained, Part II: Working with strings
12 comments
35,377 views
July 02, 2012
Bash One-Liners Explained, Part I: Working with files
29 comments
55,691 views
June 01, 2012
Browserling reaches 100 paying customers!
9 comments
16,176 views
May 31, 2012
Announcing real IEs for Browserling
16 comments
18,530 views
May 22, 2012
Introduction to Perl one-liners
4 comments
29,598 views
May 07, 2012
A quine in node.js
6 comments
9,751 views
May 01, 2012
A poem about division from Hacker's Delight
1 comment
8,799 views
April 21, 2012
The curious case of the DES algorithm
13 comments
21,851 views
April 19, 2012
A proof that Unix utility "sed" is Turing complete
5 comments
36,531 views
April 17, 2012
Review of Clickatell's SMS Service
3 comments
2,521 views
April 05, 2012
Here is why vim uses the hjkl keys as arrow keys
36 comments
241,247 views
March 09, 2012
Announcing dedicated servers for Browserling
1 comment
17,299 views
March 01, 2012
Announcing my third e-book "Perl One-Liners Explained"
20 comments
52,669 views
February 01, 2012
How Browserling Works [art]
5 comments
9,504 views
January 29, 2012
Node.js modules you should know about: procstreams
1 comment
12,526 views
January 24, 2012
Browserling has a new design!
7 comments
9,118 views
January 16, 2012
Node.js modules you should know about: everyauth
8 comments
24,186 views
January 03, 2012
How to setup Stripe payments with node.js
13 comments
38,352 views
December 29, 2011
A Perl Regular Expression That Matches Prime Numbers
12 comments
47,783 views
December 25, 2011
Node.js modules you should know about: jsonstream
1 comment
17,124 views
December 22, 2011
Node.js modules you should know about: cradle
4 comments
11,810 views
December 16, 2011
Node.js modules you should know about: semver
2 comments
23,784 views
December 15, 2011
Node.js modules you should know about: express
5 comments
18,352 views
December 14, 2011
Node.js modules you should know about: redis
0 comment
23,826 views
December 13, 2011
Node.js modules you should know about: socket.io
0 comment
23,056 views
December 12, 2011
Node.js modules you should know about: ntwitter
6 comments
20,445 views
December 09, 2011
Node.js modules you should know about: read
11 comments
19,921 views
December 08, 2011
Node.js modules you should know about: hashish
4 comments
17,614 views
December 07, 2011
Node.js modules you should know about: request
16 comments
37,587 views
December 06, 2011
Node.js modules you should know about: lazy
4 comments
22,782 views
December 05, 2011
Node.js modules you should know about: optimist
2 comments
22,998 views
December 02, 2011
Node.js modules you should know about: dnode
3 comments
32,223 views
December 01, 2011
Announcing perl1line.txt - Collection of Handy Perl Scripts
3 comments
29,705 views
November 14, 2011
Famous Perl One-Liners Explained, Part VII: Handy Regular Expressions
23 comments
35,915 views
November 10, 2011
Announcing Headless Testling
3 comments
17,210 views
November 07, 2011
Announcing Testling - Automated Cross-Browser JavaScript Testing
2 comments
30,482 views
October 24, 2011
World's best introduction to sed
9 comments
61,111 views
October 07, 2011
Announcing my second e-book "Sed One-Liners Explained"
19 comments
54,876 views
September 14, 2011
We open-sourced 90 node.js modules at Browserling!
16 comments
124,613 views
September 05, 2011
Reflections on Node.js Knockout Competition 2011
5 comments
28,001 views
August 29, 2011
Announcing Tunnels for Browserling
4 comments
19,001 views
August 17, 2011
Four Years of Blogging
15 comments
14,317 views
August 03, 2011
How I went to Silicon Valley and raised $55,000 for my Browserling startup
38 comments
30,722 views
July 26, 2011
Announcing my first e-book "Awk One-Liners Explained"
70 comments
95,895 views
June 20, 2011
Donald Knuth never told Steve Jobs that he was full of crap
12 comments
55,692 views
June 08, 2011
Working with git? These aliases will save you hours!
20 comments
65,000 views
May 20, 2011
Famous Perl One-Liners Explained, Part VI: Selective printing and deleting of lines
19 comments
40,103 views
April 27, 2011
A TCP Proxy in Perl
11 comments
27,119 views
March 31, 2011
Interview with me and James Halliday (by David Weekly)
2 comments
870 views
March 20, 2011
Why chmod text modes are more powerful than octal
14 comments
17,825 views
February 28, 2011
How to write a simple TCP Server in Haskell
13 comments
42,796 views
January 27, 2011
Restricting what programs a user can run on Windows via Group Policy Objects
17 comments
40,867 views
December 12, 2010
How to delete cookies, cache and history in all major browsers
33 comments
71,846 views
December 01, 2010
Announcing Browserling!
42 comments
67,721 views
November 24, 2010
Introducing node-lazy - lazy lists for node.js
5 comments
28,457 views
October 14, 2010
Interview with Peteris Krumins (by Michael Matuzak)
0 comment
784 views
October 10, 2010
I pushed 20 more of my projects to GitHub
7 comments
315,811 views
September 20, 2010
Reflections on Node.js Knockout Competition
17 comments
258,749 views
August 30, 2010
StackVM Demo Video #2
12 comments
36,687 views
August 10, 2010
Announcement: I am doing a startup - StackVM!
80 comments
196,980 views
July 21, 2010
Three Years of Blogging
24 comments
17,669 views
July 06, 2010
The Four Polymorphisms in C++
25 comments
140,835 views
June 18, 2010
Yet Another Ten One-Liners from CommandLineFu Explained
25 comments
74,678 views
June 02, 2010
On Functors
28 comments
100,044 views
May 17, 2010
Turn any Linux computer into SOCKS5 proxy in one command
55 comments
260,100 views
May 06, 2010
A HTTP Proxy Server in 20 Lines of node.js Code
56 comments
300,802 views
April 28, 2010
Another Ten One-Liners from CommandLineFu Explained
46 comments
147,365 views
April 20, 2010
A Real Turing Machine Running The Busy Beaver
4 comments
24,297 views
March 29, 2010
The Next Ten One-Liners from CommandLineFu Explained
20 comments
170,718 views
March 24, 2010
Top Ten One-Liners from CommandLineFu Explained
91 comments
1,029,703 views
March 18, 2010
Visual Math Friday
19 comments
40,268 views
March 05, 2010
Vim Plugins You Should Know About, Part VII: ragtag.vim (formerly allml.vim)
12 comments
136,501 views
March 03, 2010
Donald Knuth's First Computer
6 comments
44,275 views
February 26, 2010
MIT Linear Algebra, Lecture 6: Column Space and Null Space
13 comments
63,184 views
February 24, 2010
Deriving the Y-Combinator
17 comments
65,415 views
February 19, 2010
Must-Have Windows Software (or Windows Programs that I use)
138 comments
337,100 views
February 12, 2010
Famous Perl One-Liners Explained, Part V: Text conversion and substitution
28 comments
107,774 views
February 03, 2010
How to keep track of who's talking about you
4 comments
16,998 views
January 27, 2010
How to Steal a Botnet (Video Lecture Summary)
6 comments
36,306 views
January 23, 2010
MIT Linear Algebra, Lecture 5: Vector Spaces and Subspaces
10 comments
82,453 views
January 21, 2010
Vim Plugins You Should Know About, Part VI: nerd_tree.vim
20 comments
397,587 views
January 18, 2010
Using Fibonacci Numbers to Convert from Miles to Kilometers and Vice Versa
64 comments
315,304 views
January 13, 2010
Famous Perl One-Liners Explained, Part IV: String and Array Creation
21 comments
131,303 views
January 07, 2010
MIT Linear Algebra, Lecture 4: A=LU Factorization
6 comments
78,271 views
January 04, 2010
A Unix Utility You Should Know About: lsof
19 comments
167,611 views
December 23, 2009
MIT Linear Algebra, Lecture 3: Matrix Multiplication and Inverse Matrices
7 comments
41,820 views
December 16, 2009
Recursive Regular Expressions
20 comments
89,356 views
December 14, 2009
50 ideas for the new catonmat.net website
29 comments
39,278 views
December 10, 2009
I pushed 30 of my projects to GitHub
14 comments
75,261 views
December 08, 2009
MIT Linear Algebra, Lecture 2: Elimination with Matrices
5 comments
39,307 views
December 03, 2009
Secret Perl Operators
32 comments
129,750 views
November 30, 2009
MIT Linear Algebra, Lecture 1: The Geometry of Linear Equations
7 comments
50,561 views
November 24, 2009
Feedburner Graphs Suck, or How to Generate Nice Graphs for Feedburner
6 comments
33,221 views
November 17, 2009
Summary of all the MIT Introduction to Algorithms lectures
16 comments
206,233 views
November 11, 2009
Vim Plugins You Should Know About, Part V: a.vim
10 comments
60,298 views
November 05, 2009
Famous Perl One-Liners Explained, Part III: Calculations
15 comments
59,019 views
November 03, 2009
The Busy Beaver Problem
23 comments
98,440 views
October 29, 2009
ldd arbitrary code execution
55 comments
183,028 views
October 26, 2009
Python Library for Google Translate
32 comments
54,090 views
September 28, 2009
Resolving DNS Asynchronously
22 comments
43,486 views
September 17, 2009
bithacks.h - bit hacks header file
13 comments
46,982 views
September 03, 2009
Python Library for Google Sets
5 comments
24,315 views
August 13, 2009
Vim Plugins You Should Know About, Part IV: snipmate.vim
35 comments
186,038 views
August 04, 2009
Famous Perl One-Liners Explained, Part II: Line Numbering
12 comments
130,951 views
July 31, 2009
Two Years of Blogging
30 comments
25,222 views
July 27, 2009
MIT's Introduction to Algorithms, Lectures 22 and 23: Cache Oblivious Algorithms
10 comments
170,467 views
July 13, 2009
On the Linear Time Algorithm For Finding Fibonacci Numbers
39 comments
61,445 views
July 07, 2009
Low Level Bit Hacks You Absolutely Must Know
69 comments
417,127 views
June 30, 2009
Python Library for Searching Adwords
9 comments
23,418 views
April 15, 2009
Python Library for Google Search
167 comments
194,695 views
March 12, 2009
MIT's Introduction to Algorithms, Lectures 20 and 21: Parallel Algorithms
12 comments
102,970 views
March 07, 2009
JavaScript: The Good Parts
6 comments
117,791 views
February 28, 2009
Famous Perl One-Liners Explained, Part I: File Spacing
31 comments
213,595 views
February 25, 2009
A Unix Utility You Should Know About: Netcat
41 comments
169,951 views
February 17, 2009
Update on Famous Awk One-Liners Explained: String and Array Creation
6 comments
87,120 views
February 09, 2009
Musical Geek Friday #17: Hax That Fsck
12 comments
17,723 views
February 06, 2009
Vim Plugins You Should Know About, Part III: matchit.vim
13 comments
187,948 views
February 05, 2009
A Unix Utility You Should Know About: Pipe Viewer
75 comments
316,133 views
February 02, 2009
MIT's Introduction to Algorithms, Lectures 17, 18 and 19: Shortest Path Algorithms
15 comments
139,324 views
January 27, 2009
Famous Sed One-Liners Explained, Part III: Selective Deletion of Certain Lines and Special Applications
8 comments
181,766 views
January 14, 2009
How to Save Time by Watching Videos at Higher Playback Speeds
43 comments
57,285 views
January 07, 2009
Famous Awk One-Liners Explained, Part III: Selective Printing and Deleting of Certain Lines
35 comments
250,300 views
January 05, 2009
Christmas Tree in the Shell
8 comments
38,584 views
December 25, 2008
Famous Sed One-Liners Explained, Part II: Selective Printing of Certain Lines
7 comments
112,735 views
December 21, 2008
Vim Plugins You Should Know About, Part II: repeat.vim
13 comments
75,022 views
December 15, 2008
Famous Awk One-Liners Explained, Part II: Text Conversion and Substitution
26 comments
203,834 views
December 13, 2008
Vim Plugins You Should Know About, Part I: surround.vim
37 comments
401,383 views
December 08, 2008
MIT's Introduction to Algorithms, Lecture 16: Greedy Algorithms
7 comments
97,255 views
December 04, 2008
What Would John McCarthy Say if He Saw You Programming?
4 comments
55,198 views
December 03, 2008
Set Operations in the Unix Shell Simplified
9 comments
50,102 views
December 02, 2008
Musical Geek Friday #16: Don't Copy That Floppy
2 comments
17,058 views
November 28, 2008
MIT's Introduction to Algorithms, Lecture 15: Dynamic Programming
33 comments
100,261 views
November 27, 2008
My Job Interview at Google
234 comments
795,169 views
November 24, 2008
Musical Geek Friday #15: Kill -9
1 comment
26,678 views
November 21, 2008
MIT's Introduction to Algorithms, Lectures 13 and 14: Amortized Analysis and Self-Organizing Lists
2 comments
51,962 views
November 20, 2008
Difference Between Edsger Dijkstra and Larry Wall
7 comments
44,089 views
November 07, 2008
Edsger Dijkstra - Discipline in Thought
20 comments
54,061 views
November 05, 2008
10 Awk Tips, Tricks and Pitfalls
40 comments
242,396 views
October 23, 2008
MIT's Introduction to Algorithms, Lecture 12: Skip Lists
17 comments
79,583 views
October 16, 2008
Set Operations in the Unix Shell
37 comments
206,101 views
October 13, 2008
Famous Sed One-Liners Explained, Part I: File Spacing, Numbering and Text Conversion and Substitution
61 comments
495,528 views
October 08, 2008
MIT's Introduction to Algorithms, Lecture 11: Augmenting Data Structures
4 comments
223,434 views
September 29, 2008
Famous Awk One-Liners Explained, Part I: File Spacing, Numbering and Calculations
36 comments
605,400 views
September 27, 2008
MIT's Introduction to Algorithms, Lectures 9 and 10: Search Trees
7 comments
50,143 views
September 23, 2008
Code Reuse in Google Chrome Browser
56 comments
216,350 views
September 05, 2008
MIT's Introduction to Algorithms, Lectures 7 and 8: Hashing
2 comments
108,190 views
September 03, 2008
Golfing the Extraction of IP Addresses from ifconfig
45 comments
48,286 views
August 31, 2008
Revisiting GNU Awk YouTube Video Downloader
9 comments
21,219 views
August 29, 2008
MIT's Introduction to Algorithms, Lecture 6: Order Statistics
8 comments
104,014 views
August 27, 2008
MIT's Introduction to Algorithms, Lectures 4 and 5: Sorting
7 comments
83,881 views
August 25, 2008
Musical Geek Friday #14: Alice and Bob
3 comments
23,109 views
August 22, 2008
MIT's Introduction to Algorithms, Lecture 3: Divide and Conquer
15 comments
202,720 views
August 21, 2008
MIT's Introduction to Algorithms, Lectures 1 and 2: Analysis of Algorithms
86 comments
763,586 views
August 19, 2008
Musical Geek Friday #13: Song For Hackers and Crackers
3 comments
16,472 views
August 15, 2008
Traffic Accounting with Linux IPTables
15 comments
57,507 views
August 05, 2008
Python Yesterday, Today and Tomorrow
2 comments
29,856 views
July 26, 2008
Musical Geek Friday #12: Every OS Sucks
13 comments
19,344 views
July 25, 2008
Performance Tuning Best Practices for MySQL
8 comments
61,000 views
July 24, 2008
How Reddit Top and Hacker Top Programs Were Made
9 comments
29,345 views
July 23, 2008
How to Read Reddit the Fanatic Programmer Way
9 comments
23,227 views
July 22, 2008
A Year of Blogging
12 comments
40,993 views
July 21, 2008
Musical Geek Friday #11: The BitTorrent Song
3 comments
13,645 views
July 18, 2008
How Cybercriminals Steal Money
12 comments
54,862 views
July 17, 2008
Searching and Mining Open Source Code from the Web
2 comments
14,998 views
July 16, 2008
Follow Reddit from the Console
12 comments
35,853 views
July 14, 2008
Musical Geek Friday #10: TECO and DDT
6 comments
15,822 views
July 11, 2008
Three Beautiful Quicksorts
12 comments
75,204 views
July 10, 2008
Follow Hacker News from the Console
15 comments
42,797 views
July 07, 2008
Graduated with a B.Sc. Degree in Physics
25 comments
25,037 views
July 02, 2008
Musical Geek Friday #9: The Free Software Song
3 comments
13,979 views
June 27, 2008
Hacking Videos from Shmoocon
5 comments
63,116 views
June 24, 2008
Solving Google Treasure Hunt Puzzle 4: Prime Numbers
35 comments
64,608 views
June 06, 2008
Musical Geek Friday #8: The Bill Gates Song
2 comments
17,063 views
June 06, 2008
Musical Geek Friday #7: Just One More Hack
5 comments
15,094 views
May 30, 2008
Video Lecture: From Nand to Tetris in 12 Steps
5 comments
36,619 views
May 20, 2008
Theorizing from Data by Peter Norvig (Video Lecture)
1 comment
49,252 views
May 13, 2008
Musical Geek Friday #6: The Day the Routers Died
3 comments
20,635 views
May 09, 2008
Videos from Defcon 15 Hacker Conference
6 comments
56,454 views
May 01, 2008
Musical Geek Friday #5: God Wrote in Lisp (The Eternal Flame)
6 comments
30,286 views
April 25, 2008
Learning Python Design Patterns Through Video Lectures
4 comments
58,090 views
April 23, 2008
Musical Geek Friday #4: Model-View-Controller MVC Song
4 comments
33,719 views
April 18, 2008
Video Lecture On My Favorite DBMS - SQLite
5 comments
25,699 views
April 15, 2008
Musical Geek Friday #3: Code Monkey
8 comments
26,716 views
April 11, 2008
Analyzing Keyword Activity on Coding Horror
11 comments
45,133 views
April 08, 2008
Musical Geek Friday #2: Leech Axss is Coming at You!
1 comment
16,470 views
April 04, 2008
Growing a Language by Guy Steele
4 comments
31,162 views
April 01, 2008
Musical Geek Friday #1: Crypto
14 comments
29,052 views
March 28, 2008
Designing RedditRiver.com Website
15 comments
56,529 views
March 25, 2008
Learning Python Programming Language Through Video Lectures
24 comments
198,468 views
March 06, 2008
The Definitive Guide to Bash Command Line History
52 comments
586,896 views
February 18, 2008
Working Productively in Bash's Vi Command Line Editing Mode (with Cheat Sheet)
64 comments
468,858 views
January 08, 2008
Genetic Algorithms 101
20 comments
49,909 views
November 23, 2007
Bash Emacs Editing Mode Cheat Sheet
23 comments
166,334 views
October 30, 2007
How to Extract Audio Tracks from YouTube Videos
60 comments
342,973 views
October 21, 2007
Picurls.com launches - Making of the Buzziest Picture Website Part II
10 comments
53,485 views
October 14, 2007
Screen VT100/ANSI Terminal Emulator Cheat Sheet
19 comments
192,711 views
September 21, 2007
The Making of picurls.com, the Popurls for Pictures, Part I
10 comments
30,985 views
September 15, 2007
My First Interview (by Muhammad Saleem)
0 comment
21,043 views
September 07, 2007
A few words about Digpicz.com
8 comments
17,760 views
September 04, 2007
Designing Digg Picture Website in a Matter of Hours
42 comments
67,101 views
September 02, 2007
Video Lecture on Best Practices in JavaScript Library Design
1 comment
22,127 views
August 28, 2007
Revealing Reddit Score for Just Posted Links with FireFox and GreaseMonkey
4 comments
15,769 views
August 26, 2007
Bjarne Stroustrup's Video Lecture on C++0x Standard
8 comments
60,105 views
August 24, 2007
Plain Text Versions of Sed, ed and AWK Cheat Sheets
3 comments
41,440 views
August 22, 2007
Designing The Reddit Media Website
11 comments
44,361 views
August 20, 2007
Perl's pack/unpack and printf Cheat Sheet
3 comments
60,047 views
August 08, 2007
Learning JavaScript Programming Language through Video Lectures
56 comments
347,880 views
August 05, 2007
Writing a YouTube Video Downloader in VBScript
35 comments
51,994 views
August 04, 2007
Creating a Video Downloader Application using OpenSource Tools (Part II)
11 comments
22,419 views
August 03, 2007
Ed - Unix Text Editor - Cheat Sheet
8 comments
77,184 views
August 02, 2007
How to Upload YouTube Videos Programmatically
77 comments
110,032 views
July 31, 2007
Creating a Video Downloader Application using OpenSource Tools (Part I)
3 comments
25,540 views
July 30, 2007
Sed - UNIX Stream Editor - Cheat Sheet
14 comments
178,823 views
July 21, 2007
Converting YouTube FLVs (Flash Videos) to a Better Format with ffmpeg
14 comments
76,819 views
July 19, 2007
Perl Special Variable Cheat Sheet
2 comments
107,447 views
July 17, 2007
Downloading YouTube Videos with a Perl One-Liner
67 comments
160,356 views
July 15, 2007
Awk, Nawk and GNU Awk Cheat Sheet
10 comments
175,399 views
July 13, 2007
Downloading YouTube Videos with GNU Awk
52 comments
65,558 views
July 09, 2007
About this blog
35 comments
42,569 views
July 09, 2007

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Total comments: 4,667. Total views: 22,719,112.