Elephants can also drink up to 50 gallons of water a day about as much as a standard bathtub holds. Elephants are a keystone species that influence the composition of their environment while often benefiting other species.
Log Sequence Number. Every record in SQL Server transaction log has its own log sequence number or LSN. Log sequence numbers are ordered in such a way that changes related to the record with greater LSN occurred after the changes related to records with smaller LSN. Each backup that is set in SQL Server has FirstLSN and LastLSN values.
File Permissions. Use ls -l to see the permissions of files (list-long). This number is the number of hard links (pointers) to this file. You can use ln to create another hard-link to the file. This is the type of file. '-' means a regular file, 'd' would mean a directory, 'l' would mean a link. There are also other types such as 'c' for character device and 'b' for block device (found in the /dev/ directory). These are the permissions for the owner of the file (the user who created the file).