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$memcmd=`/usr/sbin/prtconf | grep Memory`;
$memcmd="/usr/sbin/prtconf | grep Memory |";
@memcmd_output = `/usr/sbin/prtconf | grep Memory`;
for my $line( @memcmd_output ){ # ... do your stuff on $line }
s**lil*; $*=join'',sort split q**; s;.*;grr; &&s+(.(.)).+$2$1+; $; = qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)