Unicode

How to use it in bash

type directly

echo $'\xe2\x98\xa0'

echo -e '\u2620'

echo -e '\xf0\x9f\x94\xA5'

OSX:

Turn on a input source called "Unicode ..." in "others" category.

Once this keyboard is on, it is possible to hold option key and key in the unicode. e.g. 00A5

Interesting Symbols

☠: E2 98 A0 🔥: U+1f525/F0 9F 94 A5

Ref

Unicode tables https://unicode-table.com/en/html-entities/