What is the 'whoopsie' process and how can I remove it?

How do I disable it on a server or via the command-line?

• Just change the report_crashes parameter to false in the /etc/default/whoopsie file.
• Then bid farewell to whoopsie with sudo service whoopsie stop.
  
  
   

http://askubuntu.com/questions/135540/what-is-the-whoopsie-process-and-how-can-i-remove-it

https://wiki.ubuntu.com/Tracker

Comments and Discussion

How to disable tracker globally :

1. Disabling tracker for globally (for all users)
   1. Edit /etc/xdg/autostart/trackerd.desktop file with root priviledges (sudo vim, gksudo gedit ...)
   2. Add "Hidden=true" to the end of the file
   3. Do the same for /etc/xdg/autostart/tracker-applet.desktop if you want
2. Disabling tracker for your user only
   1. Enter the directory "~/.config/autostart", create it if it does not exist
   2. Create a file named trackerd.desktop
   3. Paste the following into the file, save and exit

      [Desktop Entry]
      Encoding=UTF-8
      Name=Tracker
      Hidden=true

- Gokdeniz Karadag

non-existent service “fos_user.doctrine_registry”

in your app/config/config.yml, you have to alias fos_user.doctrine_registry to doctrine

services:
    fos_user.doctrine_registry:
        alias: doctrine

Nodejs v5 on ubuntu 14.04

# Using Ubuntu
curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -
sudo apt-get install -y nodejs

node -v

v5.0.0


for the stable version:

sudo npm cache clean -f
sudo npm install -g n
sudo n stable

sudo ln -sf /usr/local/n/versions/node/<VERSION>/bin/node /usr/bin/nodejs

for the lastest:

sudo n latest

To undo:
sudo apt-get install --reinstall nodejs-legacy     # fix /usr/bin/node
sudo n rm 6.0.0     # replace number with version of Node that was installed
sudo npm uninstall -g n

How to add column descriptions (comments) in Doctrine2

You can add a comment to a column name or entire table with the "options" argument to the annotation; eg:

/**
 * @ORM\Column(type="string", options={"comment":"The string to show in the dropdown "})
 */

for a column, or for a table:

/**
 * @ORM\Entity
 * @ORM\Table(name="application", options={"comment":"Funding applications"});
 */

Note however this will not add comments to an existing table or column, you have to delete the table from the DB and rebuild it. If it's just adding comments, you could rename the table, create the new table, and import data from the original.

Source: Doctrine documentation

Disable internet connection from terminal!

The following command works for me like a charm if I want to disable any internet connection from terminal:

nmcli nm enable false

To enable it again:

nmcli nm enable true

HowTo: Flush Contents Of a Memcached Server Using Command Line

echo 'flush_all' | nc localhost 11211