# bluetoothctl
[bluetooth]# list
Controller 01:23:45:67:89:AB fzidpc73

// choose the controller to work with
[bluetooth]# select 01:23:45:67:89:AB

// show/display the controller details
bluetooth]# show
Controller 01:23:45:67:89:AB
Name: fzidpc73
Alias: fzidpc73-0
Class: 0x000000
Powered: no
Discoverable: no
Pairable: yes
UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
Modalias: usb:v1D6Bp0246d0517
Discovering: no
[bluetooth]# power on
[CHG] Controller 01:23:45:67:89:AB Class: 0x000104
Changing power on succeeded
[CHG] Controller 01:23:45:67:89:AB Powered: yes

// scan for bluetooth devices (make sure your mouse is in discovery mode before running this command)
[bluetooth]# scan on
Discovery started
[CHG] Controller 01:23:45:67:89:AB Discovering: yes
[NEW] Device 34:88:5D:87:C0:A6 Bluetooth Mouse M336/M337/M535
[bluetooth]# scan off
Discovery stopped
[CHG] Controller 01:23:45:67:89:AB Discovering: no

// turn the agent on just incase you need to supply a pin code[bluetooth]# agent on
Agent registered


// note that the device might not ask you for a pin code

[bluetooth]# pair 34:88:5D:87:C0:A6
Attempting to pair with 34:88:5D:87:C0:A6
[CHG] Device 34:88:5D:87:C0:A6 Connected: yes
Request PIN code
[agent] Enter PIN code: 1234
[CHG] Device 34:88:5D:87:C0:A6 UUIDs:
00001101-0000-1000-8000-00805f9b34fb
[CHG] Device 34:88:5D:87:C0:A6 Paired: yes
Pairing successful
[CHG] Device 34:88:5D:87:C0:A6 Connected: no

// once you have done this use the following two commands to
// complete setup

[bluetooth]# connect 34:88:5D:87:C0:A6
...
[bluetooth]# trust 34:88:5D:87:C0:A6
...

How to extract audio with FFmpeg?

Run:
ffmpeg -i input.mp4 -q:a 0 -map a output.mp3

    First, make sure that you have hfsprogs installed. Example installation >command:

    sudo apt-get install hfsprogs

    Next, mount or remount the HFS+ drive; commands need to be as follows:

    sudo mount -t hfsplus -o force,rw /dev/sdXY /media/mntpoint

    or

    sudo mount -t hfsplus -o remount,force,rw /mount/point ...

    Finally, if the drive was improperly unmounted or has otherwise become >partially corrupted run fsck.hfsplus ... as such:

    sudo fsck.hfsplus -f /dev/sdXY

If you don't have readline installed, -or- you're writing a library, you should do this:

if (!function_exists('readline')) {
    function readline($question)
    {
        $fh = fopen('php://stdin', 'r');
        echo $question;
        $userInput = trim(fgets($fh));
        fclose($fh);

        return $userInput;
    }
}

$age = readline('What is your age? ');
echo "You are $age years old.\n";

sudo mount -t cifs -o username=${USER},password=${PASSWORD},uid=$(id -u),gid=$(id -g) //server-address/folder /mount/path/on/ubuntu

sudo mount -t cifs -o username=${USER},password=${PASSWORD},uid=$(id -u),gid=$(id -g),forceuid,forcegid, //server-address/folder /mount/path/on/ubuntu

sudo mount -t cifs -o username=user_name //server_name/share_name /mnt/data

Color Values:

    RGB 95 75 139
    HEX/HTML 5F4B8B

CarbonCopyCloner

### Full command line options

```
ffmpeg -f gif -i FOO.gif -pix_fmt yuv420p -c:v libx264 -movflags +faststart -filter:v crop='floor(in_w/2)*2:floor(in_h/2)*2' BAR.mp4
```

### Notie

 * output mp4 is encoded with h264, support Firefox/Chrome/Safari in Windows, Mac OSX, Android, and iOS.
 * one mp4 file for all platforms, there is no need to encode an extra `webm` movie, which encoding speed is pretty slow.
 * format as `yuv420p` for Firefox compatibility, the downside is color becomes less-saturate than original gif.
 * yuv420p only support even width/height, so crop filter is required
 * `-movflags +faststart` flags are optimized for online view in browser
 * compression ratio typically 10:1, pretty awesome. note that if original gif is < 512KB, convert as mp4 is less efficient.

### Obtain static binary ffmpeg

 * http://johnvansickle.com/ffmpeg/