PostgreSQL autostart on Mac OS X

2012-01-16T15:27:00.001+07:00

I installed PostgreSQL 9.0 from „One Click Installer” and didn't want it to launch as system starts. As PostgreSQL has been installed launchctl takes responsibility to take care of always running PostgreSQL daemon. /Library/LaunchDaemons/com.edb.launchd.postgresql-9.0.plist file sets up the daemon's behavior. There are two options that can prevent the daemon after start up. Disabled

Tab-completion for django-admin.py and manage.py

2012-01-04T12:48:00.000+07:00

Download django_bash_completion file and save in some convenient place in your system. In .bash_profile (or .bashrc if it doesn't envoke .bash_profile) add . ~/path/to/django_bash_completion Settings will take effect the next time you log in.

Autoselection of checkboxes in a table

2011-12-27T18:34:00.000+07:00

The code doing selection (function() { var toggleSelect = $("#toggle_select"), checkboxes = $("#table tbody input[type=checkbox]"); toggleSelect.click(function() { checkboxes.attr('checked', $(this).is(":checked")); }); checkboxes.click(function() { toggleSelect.attr('checked', checkboxes.length === checkboxes.filter(':checked').length); }) })() A

Activate VE from Django's manage.py

2011-12-06T16:35:00.000+07:00

To transparently activate virtual environment from project's manage.py insert the code below right after #!/usr/bin/env python activate_this = '/ABSOLUTE/PATH/TO/ENVIRONMENT/FILES/bin/activate_this.py' execfile(activate_this, dict(__file__=activate_this))

Madly follow PEP8 with git help

2011-10-20T12:15:00.000+07:00

If you intended or are obliged to strictly comply to PEP8 it may be useful to have a git hook that takes care of checking your code before you have committed and prevents you from amending previous commit again and again. So, in .git/hooks/ directory of your repository create a file with name pre-commit and put #!/bin/sh # comma-separated list of files and directories which are not for

Word and text translation bookmarklet

2011-10-15T15:13:00.000+07:00

Sometimes (I hope rarer and rarer :)) I need to translate an unknown foreign word on the page. I used to select it, open Google Dictionary Translate, paste it, set source and destination languages if needs and only then press the button to translate it. Some time later I discovered bookmarklets. I liked the approach and made one for myself. Drag this link En<>Ru the bookmark panel to be able

Uninstall XCode

2011-10-14T11:53:00.000+07:00

To uninstall XCode from Mac OS X run in terminal: sudo /Developer/Library/uninstall-devtools –mode=all

Upgrading Mac OS X to Lion and dealing with virtualenv

2011-10-12T10:32:00.000+07:00

I happened to have successfully upgraded my Snow Leopard to Lion. It looks nicer, softer and so forth. But I depend on my MacBook Pro in my work and have to have everything working. Actually after upgrade everything were broken: python did not work properly, system paths were set in their defaults. So it was absolute mess. First, as I learned it from Snow Leopard, I have downloaded new XCode

CKEditor autosave plugin

2011-10-06T23:38:00.000+07:00

If you need autosave function for the CKEditor I made a plugin. It allows to save automatically the work as you've stopped typing. UPD Oct 6, 2011: Plugin has moved to GitHub.

Avoid command repeating in Bash

2011-08-15T16:40:00.000+07:00

If you are already done with mess of the same commands in bash history, just put that in your ~/.bashrc export HISTCONTROL=ignoredups:erasedups ignoredups prevents the history from duplicates erasedups if a command is already in the list it will be removed at the old position and put in the beginning of the history list

Clients of the webservice

2011-08-03T18:50:00.000+07:00

Some time ago my iPhone happened to get lost. There were many clients of well known services installed and all of them had been logged in and most part of them had their passwords saved. To prevent access from my lost phone I had to change password for almost all services I used. Clients should avoid using re-authentication with login and password. It implies saving them on the client side.

Yesterday date

2011-06-30T16:02:00.000+07:00

$yesterday = date('Y-m-d', mktime(0, 0, 0, date("m") , date("d") - 1, date("Y"))) UPD: (thanks to stamm) $yesterday = date('Y-m-d', strtotime('- 1 day'));

Kwargs in Python

2011-06-28T14:15:00.000+07:00

Recently I noticed that function cannot accept unicode strings as parameter names given in kwargs. They must be converted to strings. I made a sample script import sys print "Version: %d.%d.%d\n" % sys.version_info[:3] string_params = {'a':1, 'b': 2} unicode_params = {u'a':1, u'b': 2} def f(a,b): print "params: ", a, b print "Run with string params:" f(**string_params) print "\nRun with

Disable Firefox cache for developing

2011-06-28T11:09:00.000+07:00

To disable caches while you're developing and testing in Firefox: Type about:config in FF address bar; Set to false the following params: network.http.use-cache browser.cache.offline.enable browser.cache.disk.enable browser.cache.disk_cache_ssl browser.cache.memory.enable Beware, it totally disables cache in FF!

Make string html-safe

2011-06-27T18:03:00.000+07:00

To make a string HTML-safe (convert & to &, > to > and so forth): >>> import cgi >>> >>> test_string = "This is string & it contains wrong symbols" >>> >>> print cgi.escape(test_string) This is <unsafe> string & it contains wrong symbols

Run Django via WSGI without web server

2011-06-22T12:49:00.000+07:00

Recently I faced a problem - I needed to test updated Django WSGI-runner script. But I didn't have a web server on my computer. And I didn't want to install it. So, how to deal with that? I found out about Werkzeug. It was supposed to solve my issue. To install it run system-wide sudo pip install werkzeugI made a runner script run.py that makes a dev server with Werkzeug and voila: run.py from

Adding a new user

2011-05-27T10:39:00.000+07:00

To create a new Postgres user. First, create a new Linux user: sudo useradd -M -N username # (do not create hoMe dir; do not add to group "userName") sudo passwd username # enter password 'username' And add user with the same name to Postgres: psql -h 127.0.0.1 -p 5432 -U username -W -d template1 # insert your hostname and port if different In psql: CREATE USER username WITH PASSWORD 'username';

How to satisfy dependencies for your python projects

2011-04-11T12:51:00.000+07:00

You need a text file in your project with your dependencies, i.e. REQUIREMENTS, with a list of packages your project depends on. PIP's requirement file format (detailed): [==] -e #egg= And when you need to init the project in a new place you'd like to run: # init or activate a virtual environment (virtual-env)$ pip install -r

Python's virtual environment

2011-04-07T17:22:00.001+07:00

You probably would like to use separate sets of packages for your projects and whilst not to spoil your system's environment. This problem can be solved by using virtual environments. Make initial setup: install pip and virtualenv:sudo easy_install pip virtualenv install virtualenvwrapper:sudo pip install virtualenvwrapper To configure virtualenvwrapper: Create a directory for the virtual

Big brother is watching you

2011-04-02T00:29:00.000+07:00

Do you doubt whether Google knows about your Wi-Fi router location? Try this on your *nix-machine: iwlist wlan0 scan | sed -n 's/.* Address: //p;T;s/ //g;q' | sed 's/.*/{version:1.1.0,host:maps.google.com,request_address:true,address_language:'${LANG/.*/}',wifi_towers:[{mac_address:"&",signal_strength:8,age:0}]}/' | curl -sX POST -d @- www.google.com/loc/json | sed -e 'h;s/.*latitude":$[^,]*$.

To upgrade PIP to the latest version

2011-03-30T21:49:00.000+07:00

sudo easy_install -U pip

Vim necessary commands

2011-03-25T15:27:00.000+07:00

Reload the file with selected encoding: :e ++enc=

Force FF not to fill up input by its 'memorized' state after refresh

2011-02-25T16:12:00.000+07:00

If it is a very annoying thing for you, use autocomplete="off" for every input you want to avoid memorizing.

Patching with git diff

2011-02-16T16:58:00.000+07:00

To create patch file: git diff --no-prefix > filename To apply it: patch -p0 < filename If you have a patch file that's been created without --no-prefix, apply it patch -p1 < filename

Launch Virualbox image from command line

2011-02-15T18:26:00.000+07:00

To launch a VirtualBox image directly without GUI interface do the following vboxmanage startvm name where name is exactly name is shown in VirtualBox GUI.

Git Delete Last Commit

2011-02-15T17:21:00.001+07:00

Once in a while late at night when I ran out of coffee, I commit stuff that I shouldn't have. Then I spend the next 10 - 15 minutes googling how to remove the last commit I made. So after third time I wanted to make a record of it so I can refer to it later. If you have committed junk but not pushed, git reset --hard HEAD~1 HEAD~1 is a shorthand for the commit before head. Alternatively you can

Git support in Netbeans

2011-02-10T14:27:00.000+07:00

To make Netbeans work with GIT as simple and comfortable as with Mercurial or SVN use nbgit.

XPath at HTML in Python

2011-01-31T22:14:00.000+07:00

This technique allows to treat HTML code as XML (if even HTML is not totally valid) and use XPath expressions over it. from lxml import etree content = '... some html ...' # use the HTML parser explicitly to provide encoding parser = etree.HTMLParser(encoding='utf-8') # load the content using the parser tree = etree.fromstring(content, parser) # we've got a XML tree from HTML # now get all links

How to add your own favicon to your blogger.com blog

2011-01-17T22:02:00.000+07:00

To get your own favicon to your blog: Store a picture you want to be the favicon in PNG and ICO formats in any web-accessible place. I used Google Docs for this because it allows to store any kind of files in public access. Put in your template this code Notice that you

Run Django with SQLite

2010-12-30T01:48:00.001+07:00

In begin with check whether SQLite has been installed in your Ubuntu sudo apt-get install sqlite then in settings.py file: DATABASE_ENGINE = 'sqlite3' DATABASE_NAME = 'path/to/db' # the rest of the fields are not used This trick very useful for development stuff because i.e. with Postgres tests run very slow, and etcetera

Disable Firefox cache

2010-12-27T20:13:00.001+07:00

To disable go to about:config page (copy to the address bar of FF) and set network.http.use-cache to false (double click it or right-click and 'Toggle').

Add jQuery to any website

2010-11-17T16:35:00.002+07:00

Sometimes I need to perform some manipulations with a webiste's data. For this purpose I like to use jQuery but not every website it has. So I need to add this support. For that I made a bookmarklet. To use it just drag jQuery to your bookmar bar.

Merge many text files to one

2010-10-26T20:56:00.001+07:00

import glob search_pattern = '*.vcf' dest_file = '__.txt' with open(dest_file, 'w') as F: for infile in glob.glob(search_pattern): with open(infile) as f: F.write(f.read()) F.write("\n\n") print 'All done' raw_input('Press enter...')

Run GAE SDK for Python and Django on Ubuntu Maverick

2010-10-23T17:10:00.036+07:00

First, I make the following structure in my project's directory: ~/projects/gae/ - directory for GAE's projects ~/projects/gae/google_appengine/ - downloaded GAE sources ~/projects/gae/google_appengine/test/ - test project using GAE So, to run this test project as well as other further projects that use GAE Download Google App Engine SDK for Python and unpack it to ~/projects/gae/. Install

Default opening software

2010-10-22T20:49:00.000+07:00

This file ~/.local/share/applications/mimeapps.list contains all overridden openers for particular MIME types.

Google Chrome and Flash player

2010-10-22T18:03:00.000+07:00

Having installed new Ubuntu 10.10 I found that Google Chrome cannot display flash content and asks to install flash player. But at flash player download website it says that I have already installed one. Googling a bit gives me an advise. I made the step below and it gets work. $ sudo apt-get install flashplugin-installer $ sudo locate libflashplayer.so /usr/lib/flashplugin-installer/

Clock widget hangup

2010-10-22T17:38:00.000+07:00

If you are very annoyed by system hangup when you have clicked clock widget to watch calendar or whatever in your Ubuntu 10.10 I can advise to do the following: sudo apt-get purge evolution-data-server evolution-couchdb evolution evolution-exchange That's all. After this you are avoided such unpleasant behavior. It, however, removes Evolution mail client but if you don't use it as me that is not

Install lxml on Windows

2010-09-16T14:37:00.000+07:00

To install easy_install on Windows: Run the command in cmd.exe easy_install lxml If have not installed easy_install download and install appropriate version from http://pypi.python.org/pypi/setuptools#downloads

Default UTF-8 for all files

2010-09-14T13:09:00.000+07:00

In /etc/netbeans.conf file add to netbeans_default_options parameter -J-Dfile.encoding=UTF-8

Sort by the key

2010-09-10T18:29:00.000+07:00

To sort query by the key: model = MyModel() model.order('-__key__') # descending sort

Change button order in new Ubuntu theme

2010-09-05T19:06:00.000+07:00

Just download this script, run it and enjoy!

Play WMV, MP3 and other restricted formats in Ubuntu

2010-08-17T01:35:00.000+07:00

Some audio and video formats are not included into Ubuntu by default. And to enable them in your system you must do it by your own.Install themOriginal Post

Fix mouse clicks in Flash-player in Ubuntu

2010-08-17T01:23:00.000+07:00

In /usr/lib/nspluginwrapper/i386/linux/npviewer add export GDK_NATIVE_WINDOWS=1so, the content in this file become #!/bin/sh TARGET_OS=linux TARGET_ARCH=i386 export GDK_NATIVE_WINDOWS=1 . /usr/lib/nspluginwrapper/noarch/npviewerRestart browser and that's all.

Restore grub2 after Windows installation

2010-07-22T23:42:00.000+07:00

To run a command as administrator (user "root"), use "sudo ". See "man sudo_root" for details. ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x14311431

Checkbox select all jQuery plugin for a table

2010-05-18T16:19:00.000+07:00

/* * File: jquery.checkboxselection.js * * Plugin to create checkbox in the table * It needs table has correct structure (at least with head and body) and * there are checkboxs in row's first cell both in header in body */ (function($) { $.fn.checkboxSelection = function() { return this.each(function() { var table = this; var headCheckbox = $('thead th:

How to limit joined records in MySQL

2010-04-28T22:41:00.000+07:00

I have to tables with one-to-many relationship. I needed to select all from the master table and join only one record which contains the oldest date. The solution is: SELECT parent.*, c1.* FROM parent JOIN child c1 ON c1.parent_id = parent.id LEFT JOIN child c2 ON c2.parent_id = c1.parent_id AND c2.sort < c1.sort -- field to determine the order (maybe

ATI driver problems after upgrading Ubuntu 9.10 to 10.04

2010-04-03T13:42:00.000+07:00

I have upgraded my desktop Ubuntu 9.10 to 10.04. Everything was fine except ATI driver didn't want to be installed. An error was in fglrx-amdcccle package,After that, I've reported the bug to Ubuntu Bug Tracker, and today I got the decision of my problem: apt-get remove xorg-driver-fglrx fglrx fglrx-amdcccle dpkg-divert --remove /usr/lib/xorg/modules/extensions/libdri.so dpkg-divert --remove /usr

Check class

2010-03-08T22:51:00.000+07:00

In case if you have to use pure Javascript: var hasClass = function(element,className) { return (function() { var classes = element.className.split(' '); for(var i in classes) { if(classes[i] == className) { return true; } } return false; })(); }

CSS attribute selectors

2010-03-02T18:22:00.000+07:00

div.aq4sdhf span.a { font-weight: bold; } div.aq4sdhf div.e { font-size: 80%; } div.aq4sdhf p { margin: 0.7em 0 0.3em 0; } div.aq4sdhf div.e p { margin: 0; } [rel=value] — attribute equals to value

Attribute Equals

h1[rel=value] { color: red; }[rel*=value] — attribute contains value anywhere

Attribute Contains

h1[rel*=value] { color: red; }[rel^=

Table checkboxes selection

2010-03-02T16:34:00.000+07:00

To select or unselect checkboxes in a table I use the follow code (function() { // checkboxes in the table var cbs = document.getElementsByName('checkboxes'); // header checkbox var all = document.getElementById('header_checkbox'); all.onclick = function() { for(var i=0;i

Universal archive unpacking tool

2010-02-22T21:58:00.000+07:00

### Handy Extract Program extract () { if [ -f $1 ] ; then case $1 in *.tar.bz2) tar xvjf $1 ;; *.tar.gz) tar xvzf $1 ;; *.bz2) bunzip2 $1 ;; *.rar) unrar x $1 ;; *.gz) gunzip $1 ;; *.tar) tar xvf $1 ;; *.tbz2) tar xvjf $1 ;; *.tgz) tar xvzf $1

Setting up a network adapter alias

2010-02-04T16:52:00.000+07:00

sudo ifconfig eth0:[0-254] 192.168.1.2 up. Instead of eth0 you can use any of existing interfaces

Firefox extension. Thoughts.

2010-01-28T02:09:00.001+07:00

While I try to see into Firefox Extension development, I found not evident things for me. And here I'll list'em. You want to append event handler to created by you DOM-element somewhere in '1body' descendants. Don't try to use onclick or like it - you'll get a fail. Use addEventHandler method, and you'll get success :)

Django model field inheritance

2010-01-27T04:13:00.000+07:00

To inherit model field in Django is not enough simply inherit a field class. It is needed to add attribute __metaclass__ = models.SubfieldBase. After that, you can overload any method you want.

Firefox extension. The first tries

2010-01-26T17:06:00.001+07:00

I am developing the service which I'll describe further. And I decide to create a Firefox extension for it. And what I have dug: To create a developer profile may that firefox -profilemanager To run another -- development -- copy of Firefox firefox -no-remote -P And I assume firefox binary in your path.

Django and Oracle support

2009-12-29T03:08:00.000+07:00

To get work Django and Oracle client in Ubuntu:Download cx_Oracle (choose for your system), Oracle InstantClient and Sql*Plus (in this page you can choose your OS and download the packages (in my case are oracle-instantclient11.2-basic-11.2.0.0.2-1.x86_64.rpm and oracle-instantclient11.2-sqlplus-11.2.0.0.2-1.x86_64.rpm).Move the files into one directory for simplicity and run alien -k *.rpm dpkg

Install RPM in Ubuntu

2009-12-29T02:14:00.000+07:00

To install Rpm-package in Ubuntu Linux (to run commands needs to be a superuser or using sudo): install alien package:sudo apt-get install alien Convert Rpm to Deb (in current directory) alient -k .rpm Install the new Deb package dpkg -i .deb

Problems with VPN-connections in Ubuntu Karmic

2009-12-29T01:34:00.000+07:00

I need to connect to Cisco VPN. I had got a file with connection settings. Through NetworkManager I created new VPN connection by import the settings file. Trying to connect - no result. In /var/log/syslog I found the line: NetworkManager: nm-vpn-connection.c.828: NeedSecrets failed: dbus-glib-error-quark Rejected se nd message, 1 matched rules; type="method_call", sender=":1.5" (uid=0 pid=969

Ubuntu's Archive Manager and RAR-archives support

2009-12-24T21:57:00.000+07:00

To add support of RAR-archives for Ubuntu's Archive Manager run sudo apt-get install unrar

Disabled Mercurial's strip command

2009-12-16T17:53:00.000+07:00

Mercurial command hg strip is disabled by default in Ubuntu. To enable it add to hgrc file (in .hg directory of repository or /etc/mercurial/hgrc) these lines [extensions] hgext.mq =

Reinstall Ubuntu automatically

2009-12-09T15:10:00.000+07:00

There is a very simple command that reinstalls all the distribution packages and reconfigures them automatically. This is particularly helpful when you have done a partial upgrade and eventually have broken the system dependencies tree. sudo dpkg-reconfigure -phigh -asince this command would take a lot of time to process (~1 hour) depending on your hardware in case you have a minor dependency

Create a MySQL database for new user

2009-12-09T04:33:00.000+07:00

To create a database and a user, to grant some privileges:CREATE DATABASE test_db DEFAULT CHARACTER SET UTF8; CREATE USER 'user'@'%' IDENTIFIED BY 'password'; GRANT ALL PRIVILEGES ON test_db.* TO 'user'@'%';

Mercurial server in haste

2009-12-08T20:43:00.000+07:00

Just now I need to pull to spontaneous remote Mercurial repository. I ran hg serve and have tried to push. The server rejects my connection, because it demands secure connection. Attempts to change protocol to HTTPS were failed. As decision I found the following: in hgrc (or mercurial.ini in Windows) add [web] allow_push = * push_ssl = false Profit :)

Setting up Postgres database server in Ubuntu 9.10

2009-11-29T19:04:00.002+07:00

Do all as the superuser. apt-get install postgresql postgresql-client postgresql-contrib # To reset password for postgres user echo "ALTER USER postgres WITH PASSWORD 'postgres';" | sudo -u postgres psql template1 # reset password for system user passwd postgresIn bottom of /etc/postgresql/8.4/main/pg_hba.conf file set as the following: # DO NOT DISABLE! # If you change this first entry you will

Mount NTFS-partition in Ubuntu Karmic x64

2009-11-29T02:48:00.000+07:00

Do all as the superuser. Get location of the ntfs partition fdisk -lDisk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x14311431 Device Boot Start End Blocks Id System /dev/sda1 * 1 29089 233657361 7 HPFS/NTFS /dev/sda2 29090

Install Chromium in Ubuntu 9.10 Karmic x64

2009-11-29T01:48:00.000+07:00

To install just run this commands as superuser. echo "deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu karmic main deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu karmic main" >> /etc/apt/sources.list apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xfbef0d696de1c72ba5a835fe5a9bf3bb4e5e17b5 apt-get update apt-get install -y chromium-browser

Disabled `hg view` command in Ubuntu

2009-11-29T01:27:00.000+07:00

To enable `hg view` command it's needs to add [extensions] hgk=in your repository hgrc (.hg/hgrc) or system-wide(/etc/mercurial/hgrc) Or you might also need to install the tk package.

Convert Ext3 filesystem to Ext4 in Ubuntu 9.04

2009-11-28T19:38:00.000+07:00

Suppose your disk is /dev/sda1.e2fsck /dev/sda1 -y tune2fs -O extents,uninit_bg,dir_index /dev/sda1 fsck -pf /dev/sda1 Profit :)

Ubuntu One Client in 9.10

2009-11-27T12:41:00.000+07:00

If you have troubles with Ubuntu One Client in 9.10 look in its config (~/.config/ubuntuone/syncdaemon.conf). It have to look like this [bandwidth_throttling] on = False read_limit = -1 write_limit = -1 If in your config `on` = True, change to False, restart UO client and get profit :) spied here.

Setup memcached cache backend in Django in Ubuntu 9

2009-11-24T05:10:00.000+07:00

In order to run them together we have to: Install necessary packages sudo apt-get install build-essential python-dev memcached libmemcache-dev python-dev Install cmemcache (using easy_install) easy_install http://gijsbert.org/downloads/cmemcache/cmemcache-0.95.tar.bz2 And, optionally and for test only, run memcached memcached -d -m 1024 -i 0.0.0.0 11211

Django auto language selection

2009-11-22T18:49:00.000+07:00

I want user can select language he prefers. But I didn't found how to do it in Django easy. And I stopped on the following decision.At first we need middleware which will detects language parameter in GET (name is in settings.LANGUAGE_COOKIE_NAME) and sets session's paramater `django_language`. import settings class LocaleDetectMiddleware(object): """ This middleware parse GET request

South for Django, or how to keep database up to date

2009-11-22T03:18:00.000+07:00

South is a migration tool for Django.There two ways to install South: system-wide or per-project. I choose the second way because I always know that it's works with the project.Get from repository. hg clone http://bitbucket.org/andrewgodwin/south/ hg update -C 0.6.2 #this is stable version now copy south dir to project Add it to INSTALLED_APPS In order to create all system models ./

Javascript SyntaxHighlighter

2009-11-21T19:58:00.000+07:00

In this blog for code highlighting I use the cool SyntaxHighlighter. And for installing it I spend some time to way to include in blogspot's template. Now just copy the html-code and paste after tag.

Restore GRUB boot loader after other OS has been installed

2009-11-17T21:43:00.000+07:00

After updating Windows XP to Windows 7 Grub-loader has been lost. I can't work without Linux. And I found this solution: At first Load from live-cd grubLet's know where os install find /boot/menu/menu.lstOutput will be like this (hd0,3)Tell grub where its files root (hd0,3)And install it setup (hd0) quit rebootAfter rebooting we can see the GRUB-menu.

Script to easily create a Postgres database

2009-11-17T21:03:00.001+07:00

#! /bin/sh if [ ${#} -ne 3 ] then echo "Usage: $0 db_name username password" exit 2 fi DBNAME=$1 USER=$2 PWD=$3 echo " CREATE USER $USER WITH PASSWORD '$PWD'; CREATE DATABASE $DBNAME; GRANT ALL PRIVILEGES ON DATABASE $DBNAME to $USER; " | psql -U postgres -d template1 or if you want just to exec it once: echo " CREATE USER $USER WITH PASSWORD '$PWD'; CREATE DATABASE $DBNAME; GRANT ALL

Generate random password in Linux

2009-11-13T14:54:00.000+07:00

cat /dev/urandom | tr -d -c 'a-zA-Z0-9' | fold -w 8 | head -1

Javascript function delegate

2009-10-10T16:33:00.000+07:00

Function.prototype.createDelegate = function(obj, args, ignoreArgs) { var method = this; return function { return method.apply(obj || window, (!args) ? arguments : (ignoreArgs === true) ? args : args.concat(Array.apply(null, arguments))); }; };

Use objects as a django view functions

2009-09-26T22:25:00.000+07:00

To use objects instead of simple functions I apply the following method: class Page(object): # Variables template = "main.html" vars = {} redirect_url = "" def __call__(self,request,*args,**kwargs): # Before calling a "main" content-generating method self.before_content(request,*args,**kwargs) # "Main" content-generating method. Must be declared in

Optimize and speed up Netbeans

2009-09-26T13:40:00.000+07:00

In /etc/netbeans.conf set netbeans_default_options to -J-client -J-Xms32m -J-Xmx512m -J-XX:PermSize=32m -J-XX:MaxPermSize=200m -J-Xverify:none -J-XX:CompileThreshold=100 -XX:+CompressedOOPS -XX:+AggressiveOpts -XX:+TieredCompilation -XX:+DoEscapeAnalysis -XX:+UseConcMarkSweepGC -J-XX:+CMSClassUnloadingEnabled -J-XX:+CMSPermGenSweepingEnabled So, we allow to use up to 512Mb RAM, compile to

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OSError: [Errno 38] Function not implemented