Can you explain more about what you are trying to do?
I don't know about IO:Tee, but "tee" is a very standard and commonly used program. Tee is available on all platforms including Windows. The basic job of tee is to take STDIN and send a line to STDOUT and also to a file. Tee.pl is simple.
#!/usr/bin/perl -w
use strict;
# tee program
$| =1; #sometimes important, flushes I/O for each write.
sub usage ()
{
print "TEE USAGE:\n tees stdout to a file and to stdout\n".
" program | tee outfile\n";
exit(0);
}
my $filename = shift @ARGV;
usage unless $filename;
open (OUTFILE, ">$filename")
or (die "Can't open OUTFILE: $!");
while (<>)
{
print;
print OUTFILE;
}
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