some shell scripts
rp_monitor.sh — play streamming videos
#!bin/sh
url=http://192.168.0.6:3000/stream.mjpg 
pipe=$(mktemp)
rm -v $pipe
mknod $pipe p
if [ ! -p $pipe ] ; then 
	echo mknod $pipe p
	exit
fi
wget --no-cache $url -O $pipe >/dev/null 2>&1 &
ffplay -vf "rotate=PI" $pipe 
rm -v $pipe
rp_reset_usb.sh — reset wireless kb/mice hub without unpluging then pluging
#!/bin/bash
port="1-1.4" # as shown by lsusb -t: {bus}-{port}(.{subport})
bind_usb() {
  echo "$1" >/sys/bus/usb/drivers/usb/bind
}
unbind_usb() {
  echo "$1" >/sys/bus/usb/drivers/usb/unbind
}
if [ $# = 0 ] ; then
  port="1-1.4"
else
  port=$1
fi
echo unbind_usb "$port"
unbind_usb "$port"
echo sleep 1 # enable delay here
sleep 1 # enable delay here
echo bind_usb "$port"
bind_usb "$port"
borrow from stackoverflow
while read line ; do
	echo $lnhe
done << __EOF__
path1
path2
path3
__EOF__
following command also useful
tar cvf /tmp/FIFO -T filelist.txt
// Have Fun!
 
			
