~/.bashrc

# Android.
export PATH=${PATH}:~/android-sdk-linux/tools:~/android-sdk-linux/platform-tools

# Text editor.
export VISUAL=/usr/bin/vim

~/.screenrc

# ~/.screenrc

screen -t root 0
screen -t bash 1
screen -t mysql/sqlplus 2
screen -t vim 3

Package management

Oneiric ships with — in my opinion only, of course — too many packages, so customize (or completely exclude) the apt-get remove, apt-get install sections as required.

sudo apt-get remove aisleriot quadrapassel gbrainy gnome-games-common gnome-mahjongg libreoffice-* gnome-sudoku gnomine -y; \
sudo apt-get autoremove -y; \
sudo apt-get update; \
sudo apt-get upgrade -y; \
sudo apt-get install barcode git-core git-doc git-gui gnome-do imagemagick libaio1 libapache2-mod-php5 meld mysql-server phpmyadmin php-pear php5 php5-cli php5-curl php5-dev php5-ffmpeg php5-gd php5-imagick php5-mcrypt php5-mysql php5-xdebug rlwrap ruby ruby-dev screen subversion tidy vim vim-gnome xclip -y --fix-missing;

Git

ssh-keygen -t rsa
xclip -sel clip < ~/.ssh/id_rsa.pub


; ~/.gitconfig

[alias]
ci = commit
di = diff
st = status

1. Paste the copied public key into the “Public keys” section of your git repository provider.
2. ~/.gitconfig creates Subversion-like aliases.

Apache

The recommended method to serve PHP pages is via mod_userdir; i.e. a public_html/ from the user’s home directory; e.g. /home/kzhiwei/public_html/. The following commands enable mod_rewrite and mod_userdir.

sudo a2enmod rewrite; \
sudo a2enmod userdir;

1. Define ServerName in /etc/apache2/httpd.conf; e.g. “localhost”.
2. Update AllowOverride in /etc/apache/mods-available/userdir.conf to “AllowOverride All”, so URL rewriting, .htaccess files work correctly.
3. If using CakePHP with mod_rewrite, the default .htaccess files will not working correctly. Use RewriteBase to adjust accordingly; e.g. for http://localhost/~kzhiwei/github.com/kzhiwei/sandbox/ to work correctly; e.g.
   • /.htaccess: RewriteBase /~kzhiwei/github.com/kzhiwei/sandbox/
   • /app/.htaccess: RewriteBase /~kzhiwei/github.com/kzhiwei/sandbox/app/
   • /app/webroot/.htaccess: RewriteBase /~kzhiwei/github.com/kzhiwei/sandbox/app/webroot/
4. Update /etc/apache2/mods-available/php5.conf by commenting “php_admin_value engine Off”, so PHP in user-directories work correctly.
5. Issue ‘sudo service apache2 restart’ when done.

~/.vimrc

"~/.vmrc

"Others.
set directory=/tmp "Place swap files in /tmp.
set hidden "Switch between unsaved buffers. Beware :q!.
set ignorecase "Case-insensitive text search...
set smartcase "... unless specified.
set term=xterm "PuTTY/Command-T compatibility.

Command-T plugin for Vim

Command-T is the one plugin I use. For working with large code bases with multiple files, it helps me open multiple buffers quickly, with a couple of keystrokes. My explanation doesn’t do it much justice, you have to give it a try yourself. If it’s the only new thing you try in 2012, this is it!

wget http://www.vim.org/scripts/download_script.php?src_id=15560 -O ~/command-t.vba; \
vim ~/command-t.vba;


Command-T is distributed as a “vimball” which means that it can be installed
by opening it in Vim and then sourcing it.

:e command-t.vba
:so %

Next the C extension is built from the shell:

cd ~/.vim/ruby/command-t/; \
ruby extconf.rb; \
make;

Assuming make is successfully, the next time you open Vim you’ll be able to use the Leader key — defaults to backslash (/) — to summon Command-T. Thereafter, inputting the path/name of the file you’re interested in, then hit Enter to open.

Oracle Express Edition (XE)

wget http://oss.oracle.com/debian/dists/unstable/non-free/binary-i386/oracle-xe-universal_10.2.0.1-1.1_i386.deb; \
sudo dpkg -i oracle-xe-universal_10.2.0.1-1.1_i386.deb; \
sudo /etc/init.d/oracle-xe configure; \
. /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/oracle_env.sh; \
sudo pecl install oci8; \
sudo touch /etc/php5/conf.d/oci8.ini;


1. When prompted to provide the path to the ORACLE_HOME directory, use ‘/usr/lib/oracle/xe/app/oracle/product/10.2.0/server’.
2. Using oracle_env.sh to define Oracle-related environment variables mostly works correctly, except two naggy “[[: not found” errors. This can be resolved by editing lines 108, 110 of /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/nls_lang.sh and removing the extra set of brackets.
3. Add “extension=oci8.so” to /etc/php5/conf.d/oci8.ini.
4. Add “export LD_LIBRARY_PATH=’/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/lib:’; export ORACLE_HOME=’/usr/lib/oracle/xe/app/oracle/product/10.2.0/server’” to /etc/apache2/envvars so that Oracle works correctly in PHP.
5. In case “pecl install oci8″ fails, check if php5-dev, php-pear is installed.

References

Command-T : Fast file navigation for VIM
Oracle and PHP5 in Debian-like systems

Here’s an excerpt:

A New York City subway train holds 1,200 people. This blog was viewed about 7,000 times in 2011. If it were a NYC subway train, it would take about 6 trips to carry that many people.

Click here to see the complete report.

However, wildcard domains; e.g. “*.doubleclick.net” and sub-domains “doubleclick.net” do not work correctly. Furthermore, if you’re a network administrator — I administer my home network — the effect is not propagated for all clients.

Aside, the large filesize (~16k lines) means reduced performance, since there are entries like “activity.serving-sys.com”, “bs.serving-sys.com”. Typically, the entire domain should be blocked — although we might end up blacklisting “good” domains; e.g. “zdnet.com”, the end result is mostly desirable.

Since my TL-WR841N is fairly competent; i.e. it allows a dot-prefixed domain; e.g. “.servicing-sys.com” works correctly as expected, I wrote a script to extract, and process the contents of hosts.txt into ~7k lines, which is a bit more acceptable.

Now, I just need to figure out how to add more than 4 domains to a rule.

If you’re interested in the source, you can find it here.

$ vim --version | grep ruby
+python +quickfix +reltime +rightleft -ruby +scrollbind +signs +smartindent

“-ruby” means that Ruby support is not available. This was an unhappy moment, as I’d been a big fan of Command-T, an excellent plugin for Vim requiring Ruby support. There are a couple of blog posts about it, but required consolidation, so here is my (mostly) repost on the solution.

The posts recommend setting up an “rpmbuild” environment for building from source, which is basically user “rpmbuild”, plus a “~/.rpmmacros” definition, plus the source RPM.

1. If “rpmbuild” already exists, the following part is not required:

# useradd rpmbuild

2. Now switch to “rpmbuild”:

# su - rpmbuild
$ vim ~/.rpmmacros

3. “.rpmmacros” is a file with the following contents:

%_topdir /home/rpmbuild/rpm
%_tmppath /home/rpmbuild/rpm/tmp

4. My build is for x86_64, so replace “$ARCH” with “x86_64″:

$ mkdir -p rpm/{BUILD,RPMS/$ARCH,RPMS/noarch,SOURCES,SRPMS,SPECS,tmp}
$ mkdir -p rpm/{BUILD,RPMS/x86_64,RPMS/noarch,SOURCES,SRPMS,SPECS,tmp}

5. Next, get the source RPM, removing the “perl-devel” dependency from “vim.spec”:

$ cd rpm/SRPMS
$ wget http://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/vim-7.2.411-1.6.el6.src.rpm
$ cd ~
$ rpm -Uvh --nomd5 ~/rpm/SRPMS/vim-7.2.411-1.6.el6.src.rpm
$ vim rpm/SPECS/vim.spec

$ rpmbuild -bb ~/rpm/SPEC/vim.spec

7. If “rpmbuild” is not installed — mine wasn’t — use “root” to install “rpm-build” first:

# yum install -y rpm-build

8. Assuming #6 completed successfully, we can use “root” to install the built RPMs:

rpm -Uvh ~/rpm/RPMS/x86_64/vim-{m,c,e}*

References

http://m.linuxweblog.com/vim-ruby-centos

http://wiki.centos.org/HowTos/SetupRpmBuildEnvironment

http://www.lamolabs.org/blog/2662/fixing-ruby-support-in-vim-on-fedora-10-11-and-centos-5-installing-the-vim-textile-plugin/

Solution: Assuming your php.ini (session) save_handler, save_path variables are set correctly, also check if sufficient disk space is available.

I spent 90 minutes trying to resolve the problem thinking it was a PHP-related issue, but in the end, nullifying the 5+ GiB of httpd error logs promptly resolved the problem. Doh!

HTH,
Wayne

So I noticed that if the power plug turned off during bootup, I would be unable to adjust my screen brightness. To resolve the problem, a restart — with the power plugged in — was required.

Right-clicking the Power system icon — located on the bottom right of the task bar, clicking Power Options -> High Performance -> Change plan settings showed just two options: “Turn off the display”, “Put the computer to sleep”. “Adjust plan brightness” had disappeared!

The solution is:

Start -> Control Panel -> Hardware and Sound -> Device Manager.

In the Device Manager window, look for “Monitors”, then right-click your monitor and select “Uninstall”. Be sure to also check the “Remove driver” option. Once removed, click the “Scan for hardware changes” icon.

Voila. “Adjust plan brightness” returns, mystery solved.

References

http://social.technet.microsoft.com/Forums/en-US/w7itprohardware/thread/08a3eb1d-b698-4639-af4b-5278b721fcdc/

aisleriot deinstall
quadrapassel deinstall
gnome-mahjongg deinstall
gnome-games-common deinstall
gnome-sudoku deinstall
gnomine deinstall

Alternatively:

$ sudo apt-get remove aisleriot quadrapassel gnome-mahjongg gnome-games-common gnome-sudoku gnomine -y

First Round (29)

MEM @ SAS: SAS in 5 (0, MEM advances in 6).
NOH @ LAL: LAL in 5 (5, LAL advances in 6).
POR @ DAL: POR in 6 (0, DAL advances in 6).
DEN @ OKC: OKC in 6 (5, OKC advances in 5).
IND @ CHI: CHI in 5 (7, CHI advances in 5).
PHI @ MIA: MIA in 5 (7, MIA advances in 5).
NYK @ BOS: BOS in 5 (5, BOS advances in 4).
ATL @ ORL: ORL in 5 (0, ATL advances in 6).

After the First Round, I have 29 points, 7 behind Benjamin Morris of Skeptical Sports.

Conf. Semis (17)

MEM @ OKC: OKC in 6 (5, OKC advances in 7).
DAL @ LAL: LAL in 6 (0, DAL advances in 0).
ATL @ CHI: CHI in 6 (7, CHI advances in 6).
BOS @ MIA: MIA in 6 (5, MIA advances in 5).

After the conference semi-finals, I’ve entered a 3-way tie for the lead with Stephen Ilardi and Benjamin Morris.

Conf. Finals (5)

CHI vs. MIA: MIA in 7 (5, MIA advances in 5).
OKC vs. DAL: OKC in 7 (0, DAL advances in 5).

After the conference finals, I now tally 51 points, dropping several places off the lead (65). My consistent picks against DAL has worked against me, but MIA must ultimately prevail!

Finals (0)

MIA vs. DAL: MIA in 6 (0, DAL wins in 6).

I made 4 picks against DAL, and they were all wrong My final position . Sigh. Oh well. There is always next year. Congratulations to Kidd, Nowitzki, Chandler & Co., NBA champions for 2010/2011, and to Benjamin Morris who tallied 68 points in Truehoop’s Stat Geek Smackdown 2011!

References

1. http://sports.espn.go.com/nba/playoffs/2011/news/story?page=Smackdown-11
2. http://kzhiwei.wordpress.com/2010/04/17/truehoops-stat-geek-smackdown-2010/
3. http://kzhiwei.wordpress.com/2009/04/29/truehoops-stat-geek-smackdown-2009/