$ curl cheat.sh/
# inkscape
# An SVG (Scalable Vector Graphics) editing program.
# For Inkscape versions up to 0.92.x, use -e instead of -o.
# More information: <https://inkscape.org>.

# Open an SVG file in the Inkscape GUI:
inkscape filename.svg

# Export an SVG file into a bitmap with the default format (PNG) and the default resolution (96 DPI):
inkscape filename.svg -o filename.png

# Export an SVG file into a bitmap of 600x400 pixels (aspect ratio distortion may occur):
inkscape filename.svg -o filename.png -w 600 -h 400

# Export the drawing (bounding box of all objects) of an SVG file into a bitmap:
inkscape filename.svg -o filename.png -D

# Export a single object, given its ID, into a bitmap:
inkscape filename.svg -i id -o object.png

# Export an SVG document to PDF, converting all texts to paths:
inkscape filename.svg -o filename.pdf --export-text-to-path

# Duplicate the object with id="path123", rotate the duplicate 90 degrees, save the file, and quit Inkscape:
inkscape filename.svg --select=path123 --verb="EditDuplicate;ObjectRotate90;FileSave;FileQuit"

$
Follow @igor_chubin cheat.sh tldr