is it a very worse idea to use <$fh> to read from a socket

Yeah, you are best off using sysread, and there are a few ways to use sysread, depending on your situation, you can put it in various staement forms 

 while( sysread $fh, $str, 8192, length $str ) {
#or
 do { $rc = sysread(FH, $buff, 5000000, length($buff)) ; } while ($rc
#or
if ( sysread( $cli, $buffer, 1024 ) ) {}
# etc etc

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In reply to Re^3: IO::Select - reading multiple lines by zentara
in thread IO::Select - reading multiple lines by nagalenoj

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