#!/usr/bin/perl
my @buildno = ("I need to capture the word beginning with CSR1.1.2.BOI46 contained in the array within a string.");
do {$_ = $1 if /(?:^|\
s)(CSR
\S*)/} foreach @buildno;
IyEvdXNyL2Jpbi9wZXJsCgpteSBAYnVpbGRubyA9ICgiSSBuZWVkIHRvIGNhcHR1cmUgdGhlIHdvcmQgYmVnaW5uaW5nIHdpdGggQ1NSMS4xLjIuQk9JNDYgY29udGFpbmVkIGluIHRoZSBhcnJheSB3aXRoaW4gYSBzdHJpbmcuIik7CmRvIHskXyA9ICQxIGlmIC8oPzpefFxzKShDU1JcUyopL30gZm9yZWFjaCBAYnVpbGRubzsKIApwcmludCAkYnVpbGRub1swXTsK