Java user Rakushin offers this free contribution for searching for words in a file and printing just those lines where the word appears. He uses it for finding IP addresses in log files. Check it out.
This program searches for a word in a file and prints all lines where the word
is found. I use the program to search IP-addresses or MAC-addresses in log files on
Windows NT and UNIX (Solaris 8).
In line StringTokenizer st = new StringTok
st = new StringTok