Hello I am facing a scenario where I have a file with XML content and I am running shell script over it. But the problem is the XML is getting updated with new services. In the below scenario, my script takes values from the xml file from one service name say ABCD. Since there are multiple, it is... (8 Replies)
Hi guys,
I am a beginner in shell script..
How can I separate a string coming from a parameter in spaces ?
Ex:
input: test.sh abcd
output: a b c d
Thanks
Dusse (15 Replies)
I am trying to separate a specific pattern match into separate files. Sometimes there is only one pattern match, but other times there could be multiple (up to 6 or 8). Pattern is as follows - its starts with NYZ or VTZ and ends with $$. Again looking to get those blocks of data from one big... (17 Replies)
Ok. I for the life of me cant figure out how to do this. I need Help. So here is what I'm trying to do. I have a block of text. They are FIPS codes for counties. Below is the block. There are probably a few ways to do this. The first line starting with ARC021....... this line is a list of... (2 Replies)
Hey all, I have a file structure that looks something like this:
file1
306708278
88954535
234167885
file2
2012-03-27T12:32:56+00:00 137 Orchotorena 184616310003601409 306708278 es 40.4777947 Majadahonda -3.6416896333333333 0 false atlante83 "<a href=""http://tapbots.com/tweetbot""... (8 Replies)
Hey guys,
Sorry for the basic question but I have a lot of files that I want to separate into groups based on filenames which I can then cat together. Eg I have:
(a_b_c.txt)
WB34_2_SLA8.txt
WB34_1_SLA8.txt
WB34_1_DB10.txt
WB34_2_DB10.txt
WB34_1_SLA8.txt
WB34_2_SLA8.txt
77_1_SLA8.txt... (1 Reply)
Hi,
I've been asked to 'troubleshoot' a webserver where two different TLDs are being served. Or to be more accurate, 'domain.com' and 'domain.fr'.
So we have
/var/www/domain.com
/var/www/domain.fr
And then for some reason, the httpd.conf file points to two different configuration files.... (1 Reply)
Hi,
I have a file like this:
abc
def
ghi
jkl
mno
My second file is like this (tab delimited):
adsad sdfsdf dfdf
wads abc dfdsf
sdsf jkl sfsdf
dsfds sdfd reor
zxczd dsf sff
Now, I want the code to report the lines (from file2) which have common strings in column 2 with the first... (4 Replies)
Hi all,
i have the bash script for remote conection,
for hosts in $(cat /list); do
ssh user1@$hosts "hostname";
done
execute hostname command by all hosts and show standar ouput,
how i can send to file by each host in lists, so
e.g.
$cat list
10.0.0.1
10.0.0.2... (1 Reply)
Hi,
I am trying to Zip a folder inside a shell script like below. It successfully taring but it only returns Null inside the variables. Searched a lot but no clue to finding the root cause.
testno=1;
date=20171128;
DIR=/root/ sh -c 'cd $DIR; tar cvf "AWS.${testno.${date}.tar" "./AWS"'
... (5 Replies)
Discussion started by: pradyumnajpn10
5 Replies
LEARN ABOUT PLAN9
sample
Packet sample action in tc(8) Linux Packet sample action in tc(8)NAME
sample - packet sampling tc action
SYNOPSIS
tc ... action sample rate RATE group GROUP [ trunc SIZE ] [ index INDEX ]
tc ... action sample index INDEX
DESCRIPTION
The sample action allows sampling packets matching classifier.
The packets are chosen randomly according to the rate parameter, and are sampled using the psample generic netlink channel. The user can
also specify packet truncation to save user-kernel traffic. Each sample includes some informative metadata about the original packet, which
is sent using netlink attributes, alongside the original packet data.
The user can either specify the sample action parameters as presented in the first form above, or use an existing sample action using its
index, as presented in the second form.
SAMPLED PACKETS METADATA FIELDS
The metadata are delivered to userspace applications using the psample generic netlink channel, where each sample includes the following
netlink attributes:
PSAMPLE_ATTR_IIFINDEX
The input interface index of the packet, if there is one.
PSAMPLE_ATTR_OIFINDEX
The output interface index of the packet. This field is not relevant on ingress sampling
PSAMPLE_ATTR_ORIGSIZE
The size of the original packet (before truncation)
PSAMPLE_ATTR_SAMPLE_GROUP
The psample group the packet was sent to
PSAMPLE_ATTR_GROUP_SEQ
A sequence number of the sampled packet. This number is incremented with each sampled packet of the current psample group
PSAMPLE_ATTR_SAMPLE_RATE
The rate the packet was sampled with
OPTIONS
rate RATE
The packet sample rate. RATE is the expected ratio between observed packets and sampled packets. For example, RATE of 100 will lead
to an average of one sampled packet out of every 100 observed.
trunc SIZE
Upon set, defines the maximum size of the sampled packets, and causes truncation if needed
group GROUP
The psample group the packet will be sent to. The psample module defines the concept of groups, which allows the user to match spe-
cific sampled packets in the case of multiple sampling rules, thus identify only the packets that came from a specific rule.
index INDEX
Is a unique ID for an action. When creating new action instance, this parameter allows to set the new action index. When using
existing action, this parameter allows to specify the existing action index. The index must 32bit unsigned integer greater than
zero.
EXAMPLES
Sample one of every 100 packets flowing into interface eth0 to psample group 12:
tc qdisc add dev eth0 handle ffff: ingress
tc filter add dev eth0 parent ffff: matchall
action sample rate 100 group 12 index 19
Use the same action instance to sample eth1 too:
tc qdisc add dev eth1 handle ffff: ingress
tc filter add dev eth1 parent ffff: matchall
action sample index 19
SEE ALSO tc(8), tc-matchall(8)psample(1)iproute2 31 Jan 2017 Packet sample action in tc(8)