Guralp Systems CMG-DCM build <10,000 - Manual (Page 116)

CMG-EAM (Platinum Firmware)
Slashes “/” will cause subdirectories to be created. Using them as date
separators will have unintended and, usually, undesirable
consequences.
10.2.3.1 Some examples
The default %Y%jT%H%MZ­%s­%c­%n­%l.mseed includes every piece
of information possible. The date format matches that used by the
GCF recorder. This will produce file-names like:
2008315T1442Z­TEST1­BHE­NN­LL.mseed
To combine all the channels from a given station simply omit the
channel marker from the file name format string:
%Y%jT%H%MZ­%s­­%n­%l.mseed
It is recommended that the “--” is left in place to highlight the omitted
channel id. This will produce file-names like:
2008315T1442Z­TEST1­­NN­LL.mseed
If you specifically want to include a marker to identify that it contains
all channels, the use of a lower case string will differentiate it from a
regular channel name, which is always presented in upper case.
%Y%jT%H%MZ­%s­all­%n­%l.mseed
yields file-names like:
2008315T1442Z­TEST1­all­NN­LL.mseed
If you prefer human readable dates, rather than using the Julian date
%Y_%m_%d­%H:%M­%s­%c­%n­%l.mseed
yields file-names like:
2008_08_14­14:42­TEST1­BHE­NN­LL.mseed
Note: don't use / as a date separator as this will split the data into sub-
directories which is probably not the desired result.
It is often required to separate the data into sub directories by network
and station prefix. In this case, it is recommended that the network
and station id are still included in the file-name so that the contents of
the file are still recognisable even if it is moved to a different location.
116 Issue C