[TriLUG] Some script help

[Igor Partola via TriLUG]

+1 for not doing this in bash. While it's of course possible, Python would
be my choice. There you can compare dates as dates, not as sorted strings.

Another approach: use logrotate to do this. I have seen this used
successfully to take backups from MySQL and keeping X number of days' worth
of backups.

Third approach: forget copying "today's file" and copy the latest file. Use
`ls backup_*.tgz | sort | tail -n 1` to get the latest file.

Fourth approach: use rsync and copy everything. Combine with third approach
to first delete the local backups that are older than 7 days.

Igor