The Codebelay Blog

Category: command-line

  • What You Missed At WordCamp LA

    Here’s what you missed:

    Installing nginx with php-fpm with varnish on the front end will make your WordPress install fly 50 times faster.

    If you’re using apt-get, you can just use:
    apt-get install php-fpm
    Or try this guide on how-to forge.
    Here’s the install process I used using PHP 5.3.3 on OS X:

    sudo ./configure --prefix=/usr/local --enable-fpm \ 
  --with-fpm-user=daemon --with-fpm-group=daemon \ 
  --with-mcrypt --with-mysql=/usr/local/mysql --with-zlib \
  --enable-mbstring --disable-pdo --with-curl --disable-debug \
  --disable-rpath --enable-inline-optimization --with-bz2 
  --with-zlib --enable-sockets --enable-sysvsem \
  --enable-sysvshm --enable-pcntl --enable-mbregex \
  --with-mhash --enable-zip --with-pcre-regex \ 
  --with-iconv=shared,/usr
make && make install
cp sapi/fpm/php-fpm.conf /usr/local/etc/php-fpm.conf
# edit php-fpm.conf with the right paths
cp sapi/fpm/php-fpm /usr/local/sbin/php-fpm
cp init.d.php-fpm /etc/init.d/php-fpm
/etc/init.d/php-fpm start

    If you get an error message it’s probably because you didn’t go through the config to set things up.

    The next part is nginx.

    ./configure --prefix=/usr/local/nginx && make && make install

    My conf/nginx.con looks like this. My sites-enabled/default.conf looks like this. My conf/fastcgi_params file is here.

    I just start nginx with /usr/local/nginx/sbin/nginx and I’m good to go.

    The quote that stuck with me the most was what Josh Highland said about caching:

    “You should use WordPress Cache Plugins. It’s like printing money. It’s free!”

    For adding your own contact form, I learned about Contact Form 7. You can ditch WuFoo if you have this configured on your WordPress.

    There’s also Pods, which is like contact-form-7 except it’s a whole framework for creating your own content types and making them show up where you want.

  • Commands I Use Frequently

    Here’s a list of commands I use frequently, where the first number represents the number of times I used that command today:

    86 git – the best version control software ever
    59 cd – used to change directories on the command-line
    54 ls – used to list files in a directory
    41 vim – when textmate just isn’t fast enough for moving and manipulating text I use this text editor
    24 grep – this is great for searching through code
    21 sudo – I use this for stopping and starting servers and anything that requires super user access

    I figured this out by using the following:

    history | cut -c8-20 | sort > commands.txt

    I created the following script in Perl:

    #!/usr/bin/env perl

    use strict;
    use warnings;

    my %h_list = ();
    my @sorted = ();
    my @listed = ();

    open(LS, “commands.txt”);
    while() {
    if ($_ =~ /(\w+)/) {
    $h_list{$1}++;
    }
    }

    close(LS);

    foreach my $key (keys %h_list)
    {
    push @listed, $h_list{$key} . “\t” . $key;
    }

    @sorted = sort { $b <=> $a } @listed;
    foreach (@sorted)
    {
    print $_ . “\n”;
    }

  • Install Script For Rails on Debian

    The following works great on Rackspace’s Debian Virtual Servers and within 5 minutes you got a running rails instance.

    #!/bin/bash

    apt-get update -y
    apt-get upgrade -y
    apt-get install dlocate -y
    apt-get install build-essential libssl-dev libreadline5-dev zlib1g-dev -y
    apt-get install sqlite3 -y
    cd /usr/local/src
    wget ftp://ftp.ruby-lang.org/pub/ruby/stable-snapshot.tar.gz
    tar zxvf stable-snapshot.tar.gz
    cd ruby
    ./configure && make && make install
    ruby -v
    ruby -ropenssl -rzlib -rreadline -e “puts :Hello”
    cd /usr/local/src
    wget http://rubyforge.org/frs/download.php/60718/rubygems-1.3.5.tgz
    tar zxvf rubygems-1.3.5.tgz
    cd rubygems-1.3.5
    ruby setup.rb
    gem install rails
    apt-get install mysql-server mysql-client -y
    apt-get install libmysql-ruby libmysqlclient15-dev -y
    gem install mysql — –with-mysql-include=/usr/include –with-mysql-lib=/usr/lib
    gem install mongrel –include-dependencies
    apt-get install git -y

  • Git: How to Cherry Pick Commits and Package them Under a Tag

    I’ve pretty much come to rely on git to pull me out of any bad jams in the chaotic environment I work in.

    One thing I’ve had to learn to do is cherry pick commits and package them under a tag in git.

    Here’s how to do it if you were working with my newLISP project called Sitebeagle:

    fork sitebeagle on this page

    cd sitebeagle

    git fetch –tags

    git checkout 8f5bb33a771f7811d21b8c96cec67c28818de076

    git checkout -b sample_cherry_pick

    git cherry-pick 22aab7

    git cherry-pick b1334775

    git diff sample_cherry_pick..master

    git tag leaving_out_one_commit

    git push origin –tags

    At this point, you should have a tagged branch that doesn’t have the commit with the change to the “2nd file.” The diff should look exactly like this:

    diff –git a/test.lsp b/test.lsp
    index 9cf1667..158b625 100755
    — a/test.lsp
    +++ b/test.lsp
    @@ -1,6 +1,7 @@
    #!/usr/bin/newlisp

    ; test tag test_a
    +; cherry pick test 2

    (load “sitebeagle.lsp”)
    (load “twitter.lsp”);

  • Doing Sysadmin on the iPhone

    For checking up on sites in the enterprise, I use Alertsite. It was suggested to me by a VP I work with at McCann, Ed Recinto. It’s been a great tool.

    For personal websites that I manage, I’ve been using something I rolled in newLISP, sitebeagle. Why? Because beagles are great watchdogs.

    Very often, most problems can be solved with tweaking code, changing permissions, or upgrading and apache or mysql.

    Very often, it’s the weekend, I’m sitting in a cafe, and get an alert from Nagios or Alertsite. With iSSH, on the iPhone, I can ssh into a LAMP server and do the work I need.

    I can see things getting a bit more complex. What tools do you use to sysadmin from an iPhone?

  • Oddments: A Great Blog For Keeping Up With Drizzle and Gearman

    Alan Kasindorf just introduced me to a great blog by Eric Day, Oddments.

    If you are into learning about alternatives to MySQL like Drizzle, or how to scale writes to a database using Gearman, then I wholeheartedly recommend his blog.

    I really like the samples of code he puts up that acts as a very useful, and direct tutorial to new technologies.

  • Setting Up a newLISP Webserver

    How fast can you get on the web? With newLISP it’s about as fast as typing:

    newlisp -http -d 8080 -w /usr/home/www/httpdocs &

    How fast can you create a backdoor with newLISP?

    newlisp -p 1234 &

    If you telnet into port 1234 in localhost, you’ll see something that looks like this:

    Trying 127.0.0.1…
    Connected to localhost.
    Escape character is ‘^]’.
    newLISP v.10.0.0 on OSX IPv4 UTF-8.

    >

    This opens up a lot of possibilities for distributed computing.

    For example, you can set up a newLISP server that’s ready to respond to a newLISP client with this command:

    newlisp -c -d 1234

    Your newLISP client can have code that sends a computing problem to be solved to the server:

    (net-eval “localhost” 1234 “(+ 3 4)” 1000)

    Or let’s say you had a farm of newLISP servers:

    #!/usr/bin/newlisp

    (set ‘result (net-eval ‘(
    (“192.168.1.100” 4711 {(+ 3 4)})
    (“192.168.1.101” 4711 {(+ 5 6)})
    (“192.168.1.102” 4711 {(+ 7 8)})
    (“192.168.1.103” 4711 {(+ 9 10)})
    (“192.168.1.104” 4711 {(+ 11 12)})
    ) 1000))

    (println “result: ” result)

    (exit)

    If the above example reminds you of Gearman, you get +12 points.

  • The Infamous Zed Shaw Declares ACL Is Dead

    If you work with ACL, this may be the most important video you watch ever. Zed shows how ACL is not Turing complete, which explains all the problems you’ve been having with control lists.


    Zed Shaw – The ACL is Dead from CUSEC on Vimeo.

  • Setting Up An EC2 LAMP Server

    Pre-requisites:

    Now we’re ready to build an EC2 LAMP Server.

    cd .ec2

    You’ll find that a lot of ec2 stuff happens in the .ec2 directory.

    To list the possible servers that you can set up run:

    ec2-describe-images -a

    I ran

    ec2-describe-images -a | wc -l

    and got 1477 possible servers. Some are Windows.

    Let’s say we see this listing:

    IMAGE ami-1539dc7c level22-ec2-images/ubuntu-8.04-hardy-20080205a.manifest.xml

    If we want to start up the ubuntu server listed above we just type:

    ec2-run-instances ami-5647a33f -k ec2-keypair

    And then we run this command:

    ec2-describe-instances

    We should see either “pending” or the actual instance running with its FQDN listed in the 4th column. An example FQDN is this:

    ec2-173-33-159-95.compute-1.amazonaws.com

    And if we go to:
    http://ec2-173-33-159-95.compute-1.amazonaws.com/

    we should see a webserver.

    And if we ssh:

    ssh -i ec2-keypair ec2-173-33-159-95.compute-1.amazonaws.com

    we’ll get the root prompt:
    #~

    That’s basically it. Now you can go in and mess around with server settings.

    In the next blog post, we’ll look at how to save your custom server settings and set up using S3.

  • Apps That Seem to Crash WoW on OS X 10.5.5

    I wrote this quick script to take care of apps that seem to Crash OS X 10.5.5 on my Macbook Pro. I have just 1GiB of RAM instead of the recommended 2GiB, but ever since killing the processes in the script below, I haven’t had a crash.

    The bad guys are:

    • Google Updater
    • Cross Over
    • HPEventHandler
    • HP IO Classic Proxy
    • HP IO Classic Proxy 2

    I killed privoxy in my script below just to get more memory to run Warcraft.

    #!/bin/bash

    C1=`ps ax | grep Cross | grep -v grep | cut -c3-6`
    echo “C1: $C1”
    kill -9 $C1
    C1=`ps ax | grep “Google Updater” | grep -v grep | cut -c3-6`
    echo “C1: $C1”
    kill -9 $C1
    C1=`ps ax | grep “HPEventHandler” | grep -v grep | cut -c3-6`
    echo “C1: $C1”
    kill -9 $C1
    C1=`ps ax | grep “HP IO Classic Proxy 2” | grep -v grep | cut -c3-6`
    echo “C1: $C1”
    kill -9 $C1
    C1=`ps ax | grep “HP IO Classic Proxy \-” | grep -v grep | cut -c3-6`
    echo “C1: $C1”
    kill -9 $C1
    C1=`ps ax | grep “privoxy” | grep -v grep | cut -c3-6`
    echo “C1: $C1”
    kill -9 $C1