Have you tried this: 
$| = 1;  # don't buffer output

open( SH, '-|', 'someshellscript.sh' ) or die "Can't run someshellscri
+pt.sh: $!";
while (<SH>) {
    print;
}

[download]
Stuff coming from the shell script might still get buffered, but if there's more than one buffer's worth, you'll see each buffer-load as soon as it happens.

In reply to Re: How to flush output in backticks In Perl? by graff
in thread How to flush output in backticks In Perl? by boom

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