If rxvt is used from the login shell outside X11, without XWin running and /tmp/.X11-unix/ empty, it nevertheless sets DISPLAY to ':0'. This even happens if rxvt is started directly from a Windows shortcut:
C:\cygwin\bin\rxvt.exe -e /bin/bash --login Does this have a special meaning or is it a bug?
rxvt does not set DISPLAY for me. You must be setting it somewhere else (Windows environment variables perhaps?)
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