Removing rows with NAs in R

http://stackoverflow.com/questions/4862178/remove-rows-with-nas-in-data-frame

Basically : use complete.cases() and na.omit()

Eclipse luna crashes on new project in Kubuntu 14.04

http://askubuntu.com/questions/537216/eclipse-luna-crashes-on-new-project-in-kubuntu-14-04

2down voteaccepted

As indicated in Eclipse auto shutdowns when creating new project one workaround to this bug is to change the GTK2 theme in System Preferences -> Application Appearance -> GTK (I personally useAurora: sudo apt-get install -y gtk2-engines-aurora). Alternatively, a patch to oxygen is available here, and has been pushed to the active development branch of oxygen. oxygen-gtk2-1.4.6-1 should be OK but as of now oxygen-gtk2-1.4.5 is still the most recent stable version.

Fixing Wordpress post permalinks on Ubuntu localhost

Installing wordpress on a fresh local install on my machine, post permalinks with post name does not work. To enable that :

1. Enable mod_rewrite for apache

cd /etc/apache2/mods-enabled/
sudo ln -s ../mods-available/rewrite.load

2. Enable AllowOverride for apache

sudo vi /etc/apache2/apache2.conf 

        Options Indexes FollowSymLinks

        AllowOverride All

Loading big data to PostGIS with shp2pgsql

From http://doublebyteblog.wordpress.com/2014/08/06/importing-large-spatial-dataset-into-postgis/

Looks like the -D switch is wital :
shp2pgsql -D -s 4326 data.shp import_shp2pgsql | psql

Fix Adobe Flash Player Issue In Chromium In Ubuntu 14.04

from http://itsfoss.com/fix-flash-player-issue-chromium-in-ubuntu-14-04/ :

sudo apt-get install pepperflashplugin-nonfree

sudo update-pepperflashplugin-nonfree --install

Cannot restart ftp under PLESK

$ ftp myftpserver.whatever Connected to myftpserver.whatever. 500 FTP server shut down (going down at Wed Dec 11 20:05:15 2002) -- please try again later.

See if you have a file called /etc/shutmsg. If you do, delete it, and the server should let you in.

This is a ProFTPD FAQ (http://proftpd.linux.co.uk/docs/faq/linked/faq-ch4.html#AEN446).

To disable ftp service under PLESK

In file /etc/xinetd.d/ftp_psa change

disable = no

to

disable = yes

and restart xinetd sevice : restart xinetd