Thread: renaming files

Greetings everyone,
I am in the process of writing a little macro to deconvolve the instrument
response using poles zeroes files. For this I have to set a blackboard
variable equal to the name of the poles zeros file for each instrument.
Example of such a file name is as follows,
SAC_PZs_US_JFWS_BHZ__1995.257.00.00.00.0000_2001.181.24.60.60.9999

I can set the first few characters of this file name using SETBB but the
probelm is "1995.257.00.00.00.0000_2001.181.24.60.60.9999" part. Does
anyone know what this refers to and how I could retrieve this probably from
a sac binary file header?

Thanks and have a great day!

Januka.