Hi Marshall,

I just wanted to point out the -t operator that tests whether a filehandle is connected to a TTY. I don't know if this is the same mechanism that Perl uses to decide whether to use line-buffered mode or not, and I dimly remember reading somewhere that the -t test isn't always reliable, but anyway, this snippet would probably also confirm the issue.

$ perl -e 'warn "STDOUT ".(-t STDOUT?"IS":"is NOT")." a TTY\n"'
STDOUT IS a TTY
$ perl -e 'warn "STDOUT ".(-t STDOUT?"IS":"is NOT")." a TTY\n"' | cat
STDOUT is NOT a TTY

[download]

Regards,
-- Hauke D

In reply to Re^11: Need sleep walking help by haukex
in thread Need sleep walking help by Todd Chester

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