🚀 go-pugleaf

> I believe that this changed when I installed bash 1.12: when I put a job that
> prints on stdout in background (^Z/bg or directly by &), the output comes out
> staggered, as if the CR wasn't being added to the LF at the end of the lines.

This is a result of bash using the BSD-style tty driver on Ultrix.  The BSD
driver ties input and output carriage return translation together with the
CRMOD bit.  (The CRMOD bit causes CR->LF translation on input and LF->CRLF
translation on output.)  Unless the CRMOD bit is cleared, it is impossible
to get a literal ^M in an input line.  Unfortunately, one of the effects of
clearing it is the loss of output processing you've observed. 

The Ultrix Posix-style tty driver can't be used because it has serious
problems with losing typeahead when ICANON is switched on and off.  These
characters seem to reappear later without warning, usually when a
program that uses the BSD-style ioctls turns on CBREAK (e.g., `more').

Chet

--
``The use of history as therapy means the corruption of history as history.''
	-- Arthur Schlesinger

Chet Ramey, Case Western Reserve University	Internet: chet@po.CWRU.Edu