if the field in question contains ANY non-numeric character, use "%s" else use "%f" with an adaptable width.
Darn, you are right. I hate it when you do that to me. ;-)
The regexp can be repaired perhaps: (var ~ /^-*[0-9.]*[0-9]+$/).
Testing for [[:alpha:]] alone will also not do the trick because of "misformed" numbers like: "123.456.789", which should not be treated as numbers despite passing the [[:digit:]]-test. Thinking about it it is not possible to determine "number or not" based on characters alone:
How do I check if a variable consisted of letters, numbers or both letters and numbers?
For example, I have a variable $X and I want to print "1" if it contains only letters, "2" if it contains only numbers and "3" if it contains both (2 Replies)
Hello all I am a unix newbie....
I have a sun netra t1 and it is freaking out
I am connected to it through a console port, and it is just spitting out a ton on numbers and letters like below its just keeps going and going.
I have tried rebooting it and I cannot get it back to any kind of a... (1 Reply)
Hi friends
How can I use "for loop" for decimal numbers?
ex: 0.1 < x < 0.6
I used this commands but does'nt work.
LIMIT=0.6
for ((x=0.1; x<=LIMIT; x++))
do
-
-
-
done
Many thanks (1 Reply)
Hello...
I am new to unix and I am wondering if in a C-shell script , Are we supposed to use only whole numbers........ for example..if a program needs to calculate the average of some numbers........
@ avg = (($1 +$2 + $3)/3)) is returning a whole number.........How can a decimal be... (7 Replies)
If I have a set of strings,
C21
F231
H42
1C10
1F113
and I want to isolate the ints following the char, what would the sed string be to find numbers after letters?
If I do,
*, I will get numbers after letters, but I am looking to do something like,
sed 's/*/\t*/g'
this will give me... (14 Replies)
Hi,
I columns with both number and letters however i need the number 4 trimmed off the lines that have 3 numbers in them so it just because the 2 preceding numbers only
For example
V25QG2-K18QG-V25CG2
L26HG-L17HA-L26CG
I434QD1-L19HB2-I434CD1
I434QD1-A31QB-I434CD1 ... (7 Replies)
Hi Experts,
I am finding difficulty to get exact match:
file
OPERATING_SYSTEM=HP-UX
LOOPBACK_ADDRESS=127.0.0.1
INTERFACE_NAME="lan3"
IP_ADDRESS="10.53.52.241"
SUBNET_MASK="255.255.255.192"
BROADCAST_ADDRESS=""
INTERFACE_STATE=""
DHCP_ENABLE=0
INTERFACE_NAME="lan3:1"... (6 Replies)
Hello,
I have a file such as this:
chr1
chr2
chr1
chr2
chr3
chr10
chr4
chr5
chrz
chr1AI want to sort it, I use this command:
sort -k1 -th -n testfilebut I get this output, how can I fix this?
chr1
chr1
chr10
chr1A
chr2
chr2 (3 Replies)
I have a file with hundreds of lines in it. I wanted to extract anything that matches the following:
KR followed by 4 digits:
example KR1201
cat list | sed "s///g"
Is the closest I've come, and obviously it is not what I want. This would remove all of the items that I want and leave me... (2 Replies)
Heyas
Just a little fun script (code block) i'd like to share for fun.
#/bin/bash
# roman.sh
#
# Function
#
num2roman() { # NUM
# Returns NUM in roman letters
#
input=$1 # input num
output="" # Clear output string
len=${#input} # Initial length to count down
... (9 Replies)
Discussion started by: sea
9 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)