How to take screenshots and customize formats in MacOS Mojave

Tested on: Mojave 10.14

Capture screenshot with keyboard shortcut

Capture entire screen:

Shift + Cmd + 3

Capture selection:

Shift + Cmd + 4

Open Screenshot app:

Shift + Cmd + 5 (can also be opened from Spotlight etc like any Mac apps)

We can modify options on the app, eg. enable/disable "Floating thumbnail", change folder destination. We can also record our screen

Change screenshot file format from CLI

I use this to switch between formats, eg. higher-resolution formats when I need detailed images, then switch to jpg to save space.

defaults write com.apple.screencapture 
  # file type, not case sensitive (default png)
  # jpg | tiff | gif | pdf | png
  type jpg
 
  # destination folder (default Desktop; can be changed from app)
  # use full path, eg. /Users/Eka/Documents
  location /Users/Eka/Desktop
 
  # file name prefix (default "Screen Shot")
  name "My Screen Shot"
 
# full example
defaults write com.apple.screencapture type jpg location /Users/Eka/Documents name "My Screen Shot"