in reply to Reading certain lines in a file

How about the following(untested, of course):
# read a file and set a flag (boolean) if pattern is found # we then will print the following line and reset the flag open(OUT,$outputfilename)||die "Could not open $outputfilename for out +put\n$!\n"; open(FILE,$inputfilename)||die "Could not open $inputfilename for read +ing\n$!\n"; while(<FILE>){ if($checked){ print OUT; undef $checked; next; } if(/pattern/){ $checked=1; next; } } close(FILE); close(OUT);