how to search for missing libraries in ubuntu linux

sudo apt-get install apt-file
apt-file update
apt-file search Xtst
sudo apt-get install libxtst6 libxtst-dev

how to - download accelerator on ubuntu linux

sudo apt-get install lftp

lftp
pget -c http://ppc.a.ec.viddler.com/.../b3a4f73071a038d931.flv &
jobs


Alternative :
sudo apt-get install axel

axel -a -v -o "name.flv"  http://ppc.a.ec.viddler.com/.../b3a4f73071a038d931.flv

ubuntu linux - how to watermark a video from cli

# Download video from youtube :
sudo apt-get install youtube-dl
youtube-dl -b -l "link to youtube video" 
[or: youtube-dl -b -t "link to youtube video"]

sudo apt-get isntall ffmpeg

ffmmpeg -i in.flv out.avi
--------------------------
sudo apt-get install avidemux avidemux2_cli 

# prepare the logo
cat > logo.avidemux_filters
<?xml version="1.0"?>
<filters FilterNumber="1">
  <Filter Tag="79" Conf="Logo at 0 0, alpha 194067208">
    <Parameters Number="4">
      <image>/tmp/dollar-small.png</image>
      <x>0</x>
      <y>0</y>
      <alpha>255</alpha>
    </Parameters>
  </Filter>
</filters>
<ctrl>-d

avidemux2_cli --load "41wL9Nko4aI.flv" --audio-codec MP3 --video-codec XVID4 --filters "logo.avidemux_filters" --output-format AVI --save "myvideo01avi" --quit

hd led replacement on ubuntu linux

in synaptic find and install :
gkrellm 
gkhdplop

how to update atheros ath9k.ko driver to the latest on ubuntu linux

Download the latest compat-wireless-2.6.tar.bz2 from :
http://linuxwireless.org/en/users/Download
open it and :

find . -name "*" -exec touch {} \;
make
sudo -s
make install

modinfo ath9k
filename:       /lib/modules/2.6.28-15-generic/kernel/drivers/net/wireless/ath9k/ath9k.ko
...
mv /lib/modules/2.6.28-15-generic/kernel/drivers/net/wireless/ath9k/ath9k.ko /lib/modules/2.6.28-15-generic/kernel/drivers/net/wireless/ath9k/ath9k.ko.bak

make unload

cat > ~/wifi_reset.sh
#!/bin/bash -x
sudo modprobe -vr ath9k
sudo modprobe -vr ath5k
sleep 1
sudo modprobe -v ath9k
#sudo modprobe -v ath9k btcoex_enable=1
#sudo modprobe -v ath5k
sudo iwconfig wlan0 power off

#sudo iwconfig wlan0 rate 48M auto
#sudo iwconfig wlan0 txpower off
#sudo iwconfig wlan0 txpower auto
#sudo iwconfig wlan0 txpower 20dBm
sudo iwconfig wlan0 txpower 19dBm
<ctrl>-d

chmod +x ./wifi_reset.sh
./wifi_reset.sh