Index
binmode, close, closedir, dbmclose, dbmopen, die, eof, fileno, flock, format, getc, print, printf, read, readdir, readline rewinddir, say, seek, seekdir, select, syscall, sysread, sysseek, syswrite, tell, telldir, truncate, warn, write
http://perldoc.perl.org/perlintro.html#Files-and-I/O
Reading file contents
http://stackoverflow.com/questions/4505381/perl-read-line-by-line