perl -e '$line="SNMPv2-MI::enterprises.343.2.10.3.5.100.1.0=INT";
print $1 if $line=~/^[\w|\d|-]*::\w*.(((\d{1,3})\.?){8})/'

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In reply to Re: cut a string in a string by smokemachine
in thread cut a string in a string by Anonymous Monk

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