Bash Script to Print All Unicode Characters to the Terminal

Here's a bash script that loops through 4-digit codes and prints the Unicode character associated with the code. Make sure your terminal supports Unicode characters

	#!/bin/sh
	export BASHOPTS=xpg_echo
	from=0000 to=ffff
	from=$(printf '%d' "0x$from") to=$(printf '%d' "0x$to")
	while test "$from" -le "$to"; do
	num=$(printf '%04x' "$from")
	bash -c "echo -n \"\u$num\""
	from=$((from+1))
	done

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References

https://unix.stackexchange.com/questions/65803/why-is-printf-better-than-echo

https://stackoverflow.com/questions/5517500/generating-hex-numbers-of-a-certain-range