in reply to To find out console line size in char.s .

Expanding on robby_dobby's answer, if the terminal is resized it should generate a $SIG{ WINCH } so install a handler to recalculate terminal size on receipt of that signal.

$SIG{ WINCH } = sub { # get new terminal size here };

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I hope this is helpful.

Cheers,

JohnGG

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Re^2: To find out console line size in char.s .
by robby_dobby (Hermit) on Mar 13, 2014 at 17:07 UTC

    Yes, but note that this may not be very portable: 

    use Config;

my @names = split ' ', $Config{sig_name};
print grep /WINCH/, @names;

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    This does not print anything on Windows, but gives me results on cygwin and Linux(Slackware). To OP: As always, read the documentation (man 7 signal). This SO post may also shed some light on SIGWINCH for Windows OSes.

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