Write that as: 
my $count=`awk -v x=$count -v y=1.0 'BEGIN{ printf "%3f\n", x+y}'`;

[download]
But why bother with awk? Why not: 
my $count = sprintf "%3f\n" => $count + 1;

[download]

Abigail

In reply to Re: awk issues by Abigail-II
in thread awk issues by RCP

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