Enable ‘New Document’ of right-click action in Ubuntu 18

# open a terminal by Ctrl+Alt+T and run the following command
touch ~/Templates/Untitled Document

Folder Permission: allow all users to read/write the files

sudo chmod -R 777 <folder name>

Mount remote hard disk

# install sshfs package
sudo apt install -y sshfs

# mount the hard disk
sshfs -o allow_other liwen@server4:/home/liwen/z_MongoDB /mnt/server4_db

# unmount it
sudo fusermount -u /mnt/server4_db

## if need change the mongodb's path, modify the etc/mongdb.conf

Split screen

using "Windows" + "Left" or "Right"

Install TeamViewer through SSH

# 0) remove old version, and download the installation file
sudo apt-get purge teamviewer
cd ~/Downloads
wget https://download.teamviewer.com/download/linux/teamviewer_amd64.deb

# 1) installation
sudo dpkg -i teamviewer_amd64.deb; sudo apt-get -f install

# 2) stop service
sudo teamviewer --daemon stop

# 3) Accept the license
sudo vim /opt/teamviewer/config/global.conf

# 4) click "I", and copy the following words to the end of the file
[int32] EulaAccepted = 1
[int32] EulaAcceptedRevision = 6

# 5) use Esc and input ":wq" to save the settings and exist

# 6) restart the service
sudo teamviewer --daemon start

# 7) set password and print id
sudo teamviewer --passwd w12345678
teamviewer --info print id

# 8) Finally, use the id and the password can access the PC remotely

convert frame images to video

cat *.jpg | ffmpeg -framerate 60 -f image2pipe -i - ~/output.mp4