$ curl cheat.sh/

 cheat.sheets:scrot 
# scrot
# Command-line screen capture utility

# Take screenshot of the current window.
scrot -u

# Take screenshot of the current window, including border.
scrot -ub

# Using a mouse, perform a rectangular selection of the screen to be captured.
scrot -s

# Capture a screenshot after 5 seconds. A countdown is also displayed.
scrot -u -d 5 -c

 tldr:scrot 
# scrot
# Screen capture utility.
# More information: <https://github.com/resurrecting-open-source-projects/scrot>.

# Capture a screenshot and save it to the current directory with the current date as the filename:
scrot

# Capture a screenshot and save it as `capture.png`:
scrot capture.png

# Capture a screenshot interactively:
scrot --select

# Capture a screenshot from the currently focused window:
scrot --focused

# Display a countdown of 10 seconds before taking a screenshot:
scrot --count --delay 10

$

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