if you meant that you want to print the line with the regex and the next line to it
then simply add last; in the first if section
if($found)
{
print "$line";
last;
}
this will get you the output
startdexdbnjcrk
this when be shown
UPDATE:and if you want to print more lines then youll be needing a counter and check each time with "if" weather the desired number of lines have been printed or not. if yes then exit.
there be many shortcuts but i guess this one is the simplest for a newbie like me to understand
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