Shell Programming and Scripting

]#!/bin/perl -w

my $int = "nge123001";

if ( $int =~ /has more than one 0-9 at the end of the string$/ ) {
    print "PATTERN MATCHED - is a vlan tagged interface\n\n";
} else {
    print "NOT MATCHED - is a standard interface\n\n";
}

$int =~ /\d\d$/

#!/bin/bash


INT="nge1"

if [[ "${INT}" =~ \d\d\d$ ]]; then
  echo "tagged"
else
  echo "standard"
fi

#!/bin/bash


INT="nge4001"

if [[ "${INT}" =~ "[0-9][0-9][0-9]$" ]]; then
  echo "tagged"
else
  echo "standard"
fi

$ cat input|awk '/[0-9][0-9][0-9]$/ {print $0 " - VLan"}; /[^0-9][0-9]$/ {print $0 " - Standard"}'
e1000g0 - Standard
nge1 - Standard
dmfe3 - Standard
e1000g123001 - VLan
nge23003 - VLan
e1000g999002 - VLan

awk '{x=substr($0,length($0)-1,1)} x~/[0-9]/{print $0,"Vlan"} x~/[^0-9]/{print $0,"Standard"}'
e1000g0 Standard
nge1 Standard
dmfe3 Standard
e1000g123001 Vlan
nge23003 Vlan
e1000g999002 Vlan