[Techtalk] script for sending mail when password about to expire

[Maria McKinley]

Hi there,

I would like to make a script that sends a mail to users when their 
password is about to expire.  In ldap the password expiration date is 
stored as days since January 1, 1970.  Is there an easy way to check the 
current date in days since January 1, 1970 in a shell script?  It looks 
like there may be some way to get the seconds since January 1, 1970, 
using the date command, so I guess I could convert this to days, but not 
sure this is the best way or exactly how to do this in a shell script.

Any ideas?  Thanks bunches,
maria