How to monitor in unix (FreeBSD) /linux (CentOS 5.6) the disk space if its greater or equal to 80%?
If its equal or greater then 80%. How can i tell dump the data from a specific /misc/ folder to DVD and empty the space that was burned to DVD. So that it never cross 80% threshold?
example: * * * * * /usr/bin/php or perl /myscript