How do you echo a 4-digit Unicode character in Bash?

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In UTF-8 it’s actually 6 digits (or 3 bytes).

$ printf '\xE2\x98\xA0'
☠

To check how it’s encoded by the console, use hexdump:

$ printf ☠ | hexdump
0000000 98e2 00a0                              
0000003

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