====== Useful Debian / Ubuntu Commands ======

===== Limit apt-get download speed =====

<code>
apt-get -o Acquire::http::Dl-Limit=100K <...>
</code>

===== Remove left-over package configuration files =====

<code>
dpkg -l | grep ^rc | cut -d ' ' -f3 | xargs dpkg --purge
</code>

===== Create Samba user =====
<code>
smbpasswd -a `whoami`
</code>
//Note that the default passdb backends require the user to already exist in the system password file//

===== Montage =====
Required packages: ''imagemagick''\\
[[http://www.imagemagick.org/Usage/montage/|Examples]]
<code>
montage frame?.png -geometry 640x480+0+0 -tile 4x1 image.png
</code>

  * geometry: width x height + x_offset + y_offset
  * tile: cols x rows

===== Merge AVI files =====
Required packages: ''mencoder''\\
<code>
mencoder -ovc copy -oac copy video1.avi video2.avi -o completevideo.avi 
</code>

===== VLC server -> Dreambox streaming =====
==== PC ====
Required packges: ''vlc''
<code>
vlc -d -I http --sout="#transcode{vcodec=mp2v,vb=1024,scale=1,acodec=mpga,ab=192,channels=2}:duplicate{dst=std{access=http,mux=ts,dst=:9090}}"
</code>

Add Dreambox IP to ''/etc/vlc/http/.hosts''


==== Dreambox (Gemini Project) ====
Required packges: ''vlcf''\\
Can be installed via ''Blue Panel -> Addons -> Download (Gemini-Sever) -> Plugins''\\

<code>
cp /var/tuxbox/config/vlcf_original.xml /var/tuxbox/config/vlcf.xml
</code>

Edit ''vlcf.xml'':
<file>
<server name="set1" ip="1.2.3.4" webif-port="8080" stream-port="9090" user="admin" pass="admin" />
....
<config name="set1" startdir="/home/username/videos" cddrive="/media/cdrom0" />
</file>

===== Change default shell =====
<code>
chsh -s /usr/bin/zsh USERNAME
</code>