Cygwin fails to utilize Unicode replacement character

Sat Sep 1 18:46:00 GMT 2018

On Sat, 1 Sep 2018 20:11:15, Thomas Wolff wrote:
> Which terminals are used and what's the output of `locale` and `cat 
> --version` in both cases?

Linux:
 $ echo "$TERM"
 xterm-256color
 $ locale
 LANG=en_US.UTF-8
 LC_CTYPE="en_US.UTF-8"
 LC_NUMERIC="en_US.UTF-8"
 LC_TIME="en_US.UTF-8"
 LC_COLLATE=C
 LC_MONETARY="en_US.UTF-8"
 LC_MESSAGES="en_US.UTF-8"
 LC_PAPER="en_US.UTF-8"
 LC_NAME="en_US.UTF-8"
 LC_ADDRESS="en_US.UTF-8"
 LC_TELEPHONE="en_US.UTF-8"
 LC_MEASUREMENT="en_US.UTF-8"
 LC_IDENTIFICATION="en_US.UTF-8"
 LC_ALL=
 $ cat --version
 cat (GNU coreutils) 8.29
Cygwin:
 $ echo "$TERM"
 cygwin
 $ locale
 LANG=en_US.UTF-8
 LC_CTYPE="en_US.UTF-8"
 LC_NUMERIC="en_US.UTF-8"
 LC_TIME="en_US.UTF-8"
 LC_COLLATE="C"
 LC_MONETARY="en_US.UTF-8"
 LC_MESSAGES="en_US.UTF-8"
 LC_ALL=
 $ cat --version
 cat (GNU coreutils) 8.26
Note that in addition to Linux, Windows PowerShell also gives correct output:
 $ pwsh -c '[system.text.encoding]::UTF8.getString(0xEB)'
 ï¿½
compare again with Cygwin:
 $ printf '\xEB'
 â–’
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