chan configure stdout -buffering none chan configure stderr -buffering none puts -nonewline stderr "1 hello on stderr with crlf newline\r\n" flush stderr puts -nonewline stdout "2 hello on stdout with crlf newline\r\n" flush stdout puts -nonewline stderr "3 hello on stderr with unix newline\n" flush stderr puts -nonewline stdout "4 hello on stdout with unix newline\n" flush stdout puts -nonewline stderr "5 hello on stderr no line-ending" flush stderr puts -nonewline stdout "6 hello on stdout no line-ending" flush stdout puts -nonewline stderr "7 hello on stderr no line-ending" flush stderr set ::tcl_interactive 1