OpenMoji: U+2600

2600.svg

<!-- https://github.com/hfg-gmuend/openmoji/blob/15.1.0/color/svg/2600.svg -->
<svg id="emoji" viewBox="5 5 61.9823 61.9823" xmlns="http://www.w3.org/2000/svg">
	<g id="color">
		<polygon fill="#FCEA2B" stroke="none" points="66,36 55.3235,41.1816 61.9819,51.0063 50.1418,50.1424 51.0056,61.9823 41.1813,55.3236 36,66 30.8184,55.3235 20.9937,61.9819 21.8576,50.1418 10.0177,51.0056 16.6764,41.1813 6,36 16.6765,30.8184 10.0181,20.9937 21.8582,21.8576 20.9944,10.0177 30.8187,16.6764 36,6 41.1816,16.6765 51.0063,10.0181 50.1424,21.8582 61.9823,20.9944 55.3236,30.8187"/>
	</g>
	<g id="line">
		<circle cx="36" cy="35.95" r="19.8276" fill="none" stroke="#000000" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" stroke-width="2"/>
		<polygon fill="none" stroke="#000000" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" stroke-width="2" points="66,36 55.3235,41.1816 61.9819,51.0063 50.1418,50.1424 51.0056,61.9823 41.1813,55.3236 36,66 30.8184,55.3235 20.9937,61.9819 21.8576,50.1418 10.0177,51.0056 16.6764,41.1813 6,36 16.6765,30.8184 10.0181,20.9937 21.8582,21.8576 20.9944,10.0177 30.8187,16.6764 36,6 41.1816,16.6765 51.0063,10.0181 50.1424,21.8582 61.9823,20.9944 55.3236,30.8187"/>
	</g>
</svg>

openmoji-2600

#!/usr/bin/env sh

set -euf

script_dir="$(dirname "$(readlink -e -- "$0")")" # https://stackoverflow.com/a/29835459/16330198
default_input_f="$script_dir/2600.svg"

is_integer() {
	string="$1"

	# https://stackoverflow.com/a/3951175
	case "$string" in
		''|*[!0-9]*)
			return 1
			;;
		*)
			return 0
			;;
	esac
}

if is_integer "$1"; then
	input_f="$default_input_f"
else
	input_f="$1"; shift
fi
width="$1"; shift
if [ -n "${1-}" ]; then
	output_f="$1"; shift
else
	output_f="$(basename "$input_f" '.svg')-$width.png"
fi

rsvg-convert --width="$width" "$input_f" --output="$output_f"