Hi Steffen,
> That is, tr(1) is buggy
tr(1) seems to be behaving as I'd expect. The \n is a control character
and is being turned into space so you have to add another with echo. It
thinks 0-0x1f and 0x7f are cntrl.
$ recode /test8 </dev/null |
> tr -c '[:cntrl:]' - |
> tr '[:cntrl:]' c |
> fold -32; echo
cccccccccccccccccccccccccccccccc
--------------------------------
--------------------------------
-------------------------------c
--------------------------------
--------------------------------
--------------------------------
--------------------------------
$
> This doesn't work in the code above
I can get an additional echo to work here, Linux, so I'm not quite sure
what you're trying that fails?
$ printf '%s\n' foo '.pso sh -c \' ' "echo -n a | tr a b"' bar |
> nroff -U | grep .
foo bbar
$
$ printf '%s\n' foo '.pso sh -c \' ' "echo -n a | tr a b; \' ' echo"' bar |
> nroff -U | grep .
foo b bar
$
Cheers, Ralph.
