check this 
while(<DATA>) {
chomp;
if (/^1[.)](.*?)2[.)]$/) {
print"matched $1\n";
}
else{
print "not matched \n";
}
}

__DATA__
1. 2.10.10.20 some text 2.
1) 2.10.10.20 2)

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In reply to Re: regular expression for getting text between 1. and 2. by prashantktyagi
in thread regular expression for getting text between 1. and 2. by Anonymous Monk

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