the below two options you suggested are not working for me. I'm getting error as "Bad : modifier in $ ($).". Can u please help me on this...... 
perl -nlE "say for/\[(\d+):(\d+)\](\w+)/?map{$3.qq([$_])}$2..$1:$_" po
+rtbus.txt

perl -nlE "push @res,/\[(\d+):(\d+)\](\w+)/?map{$3.qq([$_])}$2..$1:$_;
+END{say for @res}" portbus.txt

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In reply to Re^2: splitting the bus and print -- oneliner by perl vams
in thread splitting the bus and print by perl vams

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