I want to exclude (-v) blank records from a file before analysing it.
I know I can use '^]$' for spaces and tabs but how do you look for lines that have nothing (/n or line feed) ? (2 Replies)
Hello.
I had installed solaris 10 in morning , and all was running fine... I just logged out and logged in with another user ID oracle - It got stuck and then I pressed the button for restart.
Now I see only word GRUB written in top line rest everything is black.
What to do? (2 Replies)
Hello
I'm new in sun and i have a liitle problem.
I buy sun enterprise 420r and connect keyboard and monitor crt (non Sun).
But when i start server i have blank screen on crt. I'm new in sun servers and i dont know why its doin this. (11 Replies)
Hello!
Sorry, for my not so perfect english!
I want to stop bash shell script execution until any key is pressed.
This line in a bash shell script
read -n1 -r -p "Press any key to continue..." key
produces this error
When I run this from the command line
usera@lynx:~$ read... (4 Replies)
Using GNU-Screen for a long time.
C-a 1 2 n p to navigate to other tabs. This works till 9. I often have 10, 11 etc. Is there any way to go to them quickly ?
Currently, i have to do C-a 9, C-a n which is quite a pain. Thanks. (0 Replies)
hi to all.
im a newbie in unix shell scripts. i want to make a simple unix shell script using the bash shell that asks a user to press any key after a series of commands, or an x if he wishes to exit. here's a sample script that i made:
#!/usr/bin/bash
pause(){
/usr/bin/echo "\t\t Press... (3 Replies)
I have a SunFire V490
Recently when the server is rebooted the screen goes blank from when the CDE is shutdown to when it is started up again.
Has anyone got any ideas what might be causing this?
I've had a quick look in messages but can't find anything in there. I've had a look at... (2 Replies)
Hello,
I got blank screen when reboot after I tried to upgrade Ubuntu (64 bit server version) from 11.10 to 12.04 at update manager.
The normal login GUI is missing, but mouse cursor is fine. Then I switched to terminal (tty1 ~ tty6), which looked fine and showed it is Ubuntu 12.04 ! (Forgot how... (4 Replies)
Hi everyone,
I have a data.xml file which only contains thousands of data (tag) blocks. A part of the file looks exactly like this;
<data>
Line
Line
Line
</data>
<data>
Line
Line
Line
</data>
the rest of the file is simply a repetition of this part. Here each data block contains a... (8 Replies)
hi,
i need to replace a blank tab output in a file to zero.
input file:
2015/08/04 00:00:00 171 730579 27088 <blank> 3823 30273 1621778 ... (6 Replies)
Discussion started by: amyt1234
6 Replies
LEARN ABOUT DEBIAN
mrtg-ping-probe
MRTG-PING-PROBE(1) General Commands Manual MRTG-PING-PROBE(1)NAME
mrtg-ping-probe - ping probe module for Multi Router Traffic Grapher
DESCRIPTION
mrtg-ping-probe is a ping probe module for MRTG 2.x. It is used to monitor the round trip time and packet loss to networked devices. MRTG
uses the output of mrtg-ping-probe to generate graphs visualizing minimum and maximum round trip times or packet loss.
mrtg-ping-probe is not run directly, but is called by MRTG as a helper when it needs to determine ping time to a host.
Act responsibly: do not use mrtg-ping-probe to ping devices without the owner's permission. Just imagine if 10,000 people decided to ping
your hosts! mrtg-ping-probe is meant to be used within your network to get round trip time performance figures for your network.
OPTIONS
To use mrtg-ping-probe you need to configure MRTG to call it from within the definition of a target host. This is done in the MRTG config
file, which is usually /etc/mrtg.conf.
Here's an example snippet: change the target name and IP address to suit your needs.
Target[your.target.ping]: `/usr/bin/mrtg-ping-probe 123.456.789.123`
SetEnv[your.target.ping]: MRTG_INT_IP="123.456.789.123" MRTG_INT_DESCR="ping"
MaxBytes[your.target.ping]: 100
AbsMax[your.target.ping]: 200
Options[your.target.ping]: gauge, growright
YLegend[your.target.ping]: ping time (ms)
ShortLegend[your.target.ping]: ms
Legend1[your.target.ping]: Maximum Round Trip Time in ms
Legend2[your.target.ping]: Minimum Round Trip Time in ms
Legend3[your.target.ping]: Maximal 5 Minute Maximum Round Trip Time in ms
Legend4[your.target.ping]: Maximal 5 Minute Minimum Round Trip Time in ms
LegendI[your.target.ping]: Max:
LegendO[your.target.ping]: Min:
Pay close attention to the backticks in the first line which tell MRTG to execute the nominated external program. Note also that you need
to use the "gauge" option, since the results of subsequent ping probes are independant values and not an incrementing counter.
SEE ALSO mrtg(1).
The latest release of mrtg-ping-probe can be found on the web at http://pwo.de/projects/mrtg/
AUTHOR
This manual page was written by Jonathan Oxer <jon@debian.org>, for the Debian project (but may be used by others).
April 14, 2003 MRTG-PING-PROBE(1)