magick-import
Capture some or all of an X server screen and save the image to a file.
TLDR
Capture the entire X server screen into a PostScript file
$ magick import -window root [path/to/output.ps]
Capture contents of a remote X server screen into a PNG image
$ magick import -window root -display [remote_host]:[screen].[display] [path/to/output.png]
Capture a specific window given its ID as displayed by xwininfo into a JPEG image
$ magick import -window [window_id] [path/to/output.jpg]
