beautypg.com

3 incoming data – Guralp Systems CMG-DCM build <10,000 User Manual

Page 170

background image

CMG-EAM (Platinum Firmware)

continues to run, printing each new line as it is added to the
log. Type

+

to stop the output and return to the

command line.

less /var/log/messages

Views the whole log file; use the

,

,

and

keys to

navigate and the

key to exit.

vi /var/log/messages

Those users familiar with the vi text editor may wish to use it

as the most powerful way to view log entries.

grep -i 'string' /var/log/messages

Searches for a string or pattern in the log file. This search is case
insensitive (-i flag).

grep is a very powerful tool for searching for patterns. For more

information, see the section on Regular Expressions in the grep 
manual page at

http://man­wiki.net/index.php/1:grep

13.1.3 Incoming Data

The status web-page has one box for each GCF acquisition process.
This box will be updated every minute to reflect the number of packets

that have been acquired.

To view details of incoming GCF format data using the command line,
use one of the following commands:

gdi-dump -l

Displays a list of channels and segments. For more information,

see “GDI Channels Display” in section 13.3.3 on page 185;

gdi-dump -lm

Displays the the same data, along with meta-data added by the
relevant input module; or

gdi-dump

Displays real-time information about each packet arriving, until
interrupted by the operator typing

+

.

170

Issue C

This manual is related to the following products: