D C's List: Linux

• Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol. In contrast to other display servers, Xvfb performs all graphical operations in memory without showing any screen output.

• Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night. This program is inspired by f.lux (please see this post for the reason why I started this project).

• This is the "userContent.css" included by the Elegant Gnome theme, copy it into the "chrome" directory of your Firefox profile, "~/.mozilla/firefox/*.default", or merge it with your own. Then try to filter out the specifications you don't need/want.
   

   

  Code:

   

  input { border: 2px inset white; background-color: white; color: black; -moz-appearance: none !important; }  textarea { border: 2px inset white; background-color: white; color: black; -moz-appearance: none !important; }  select { border: 2px inset white; background-color: white; color: black; -moz-appearance: none !important; }  input[type="radio"], input[type="checkbox"] { border: 2px inset white ! important; background-color: white ! important; color: ThreeDFace ! important; -moz-appearance: none !important; }  *|*::-moz-radio { background-color: white; -moz-appearance: none !important; }  button, input[type="reset"], input[type="button"], input[type="submit"] { border: 2px outset white; background-color: #eeeeee; color: black; -moz-appearance: none !important; }  body { background-color: white; color: black; display: block; margin: 8px; -moz-appearance: none !important; }

• To enable GDM in Manjaro 0.8.2 or later (or if Plymouth has been removed), enter the command: 

   

  sudo systemctl enable gdm.service -f

• To enable LXDM in Manjaro 0.8.2 or later (or if Plymouth has been removed), enter the command: 

   

  sudo systemctl enable lxdm.service -f

• To enable SLiM in Manjaro 0.8.2 or later (or if Plymouth has been removed), enter the command: 

   

  sudo systemctl enable slim.service -f

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• 3.1. Finding packages --   apt-cache search

  Whether you're online or not--

  How do you find the package that's got the feature you're  looking for? First, do 

  # apt-get update

    so your package list is up-to-date, and then try something like 

  % apt-cache search tunnel

• 3.2. Describing packages --   apt-cache show

  The simplest way to see the description of a package: 

  % apt-cache show postgresql % apt-cache show iproute

• 3.3. Listing packages -- dpkg -l

  Which packages are installed? Do any packages need  configuring? 

  % dpkg -l

• 3.5. Package contents --   dpkg -L

  % dpkg -L mysql % dpkg -L apt

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• *

  create /usr/share/fonts/truetype/

   

    * copy font files to new location.

   

    *

  then update your font cache.

   

    sudo fc-cache -fv

• The default lxpanel is here: /usr/share/lxpanel/profile/LXDE/panels
  
  Copy this to your ~/.config/lxpanel/LXDE/panels
  
  and you should be back to basic.

• grep -rl 'windows' ./ | xargs sed -i 's/windows/linux/g'  

    This will search for the string 'windows' in all files relative to the current directory and replace 'windows' with 'linux' for each occurrence of the string in each file.