regex - Perl regexp matching -

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edit : have difficult express myself. let me start again. have loop read string file :

gigabitethernet0/0 gigabitethernet0/1 gigabitethernet0/2 serial0/0/0:0 serial0/0/0:0.100

and i'm trying regexp interface serial0/0/0:0

if ($linesplitter[2] =~ /serial0(.*):0[^(.\d)](.*)/ && $interfacebool eq "false"){     $interfaceneeded = $linesplitter[2] ; }

but not working. tried several things on online regexp simulator still.. without result... want main interface (serial0/0/0:0), not sub-interface (serial0/0/0:0.100)

expected variable:

serial0/0/0:0

i don't want replace, or part of sub-interface. want regexp match main interface without matching sub-one

sorry misunderstanding.

if want restrict match, use anchors, ^ match beginning of string, , $ match end of string:

/^serial0(.*):0$/

this match serial strings end :0.


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