Convert DVD videos into mp4 files with ffmpeg

Convert DVD videos into mp4 files with ffmpeg

https://www.tech-g.com/2017/01/15/converting-dvd-to-mp4-h264-on-windows/

ffmpeg -i "concat:VTS_01_1.VOB|VTS_02_1.VOB|VTS_03_1.VOB|VTS_04_1.VOB|VTS_05_1.VOB" outfile.mp4

How to create a root password in Ubuntu Linux?

How to create a root password in Ubuntu Linux?

You may have noticed that you can’t login to root account on Ubuntu, this is because root doesn’t actually have a password set.

Type the following command:

sudo passwd

The following message will appear:

[sudo] password for [username]: [Type your user password and press return]

After that another message will appear, the following:

Type new UNIX password: [Type the root password you want]

Now the last thing you need to do, the following:

Retype new UNIX password: [Retype the root password you chosen before]

The following message will appear:

passwd: password updated successfully

If the above message showed up on your terminal, you can now use the root privileges by typing:

su

And then type the password you chosen. That's it!