Find the pure prefixes and filter the file:
These problems of the fate of a line depending on a future line require storage or sorting, as going back is a bit hard. If you can cast it as a table, SQL is
Last edited by DGPickett; 02-22-2013 at 06:11 PM..
Hi Guys,
I need help in modifying a large text file containing more than 1-2 lakh rows of data using unix commands. I am quite new to the unix language
the text file contains data in a pipe delimited format
sdfsdfs
sdfsdfsd
START_ROW
sdfsd|sdfsdfsd|sdfsdfasdf|sdfsadf|sdfasdf... (9 Replies)
Fruit : Price : Quantity
apple : 20 : 40
chiku : 40 :30
Hey guys, i have written a code using sed to delete a specific char which is being typed in. But the problem i am having is , how can i expand my coding to actually allow it do delete the whole row. For example,... (21 Replies)
Dear UNIX community,
I would like to to count characters from a specific row and have them displayed line-by-line.
I have a file called testAwk2.csv which contain the following data:
rabbit penguin goat
giraffe emu ostrich I would like to count in the middle row individually... (4 Replies)
I know this is a complicated question but I will try to illustrate it with some data. I have a data file that looks like the following:
1341 NA06985 0 0 2 46.6432798439
1341 NA06991 NA06993 NA06985 2 48.8478948517
1341 NA06993 0 0 1 45.8022601455
1340 NA06994 0 0 1 48.780669145
1340... (1 Reply)
Hi all
I have a file which looks like this
1234|1|Jon|some text|some text
1234|2|Jon|some text|some text
3453|5|Jon|some text|some text
6533|2|Kate|some text|some text
4567|3|Chris|some text|some text
4567|4|Maggie|some text|some text
8764|6|Maggie|some text|some text
My third column is my... (9 Replies)
Hi,
I have a tab delimited text file where the first two columns equal numbers. I want to delete all rows where the value in the first column equals the second column. How do I go about doing that? Thanks!
Input:
1 1 ABC DEF
2 2 IJK LMN
1 2 ZYX OPW
Output:
1 2 ZYX OPW (2 Replies)
Dear fellows, I need your help.
I'm trying to write a script to convert a single column into multiple rows.
But it need to recognize the beginning of the string and set it to its specific Column number.
Each Line (loop) begins with digit (RANGE).
At this moment it's kind of working, but it... (6 Replies)
I have an xml file dumped from rrd file, that I want to "patch" so the xml file doesn't contain any blank hole in the resulting graph of the rrd file.
Here is the file.
<!-- 2015-10-12 14:00:00 WIB / 1444633200 --> <row><v> 4.0419731265e+07 </v><v> 4.5045912770e+06... (2 Replies)
Discussion started by: rk4k
2 Replies
LEARN ABOUT DEBIAN
sniffit
SNIFFIT(5) File Formats Manual SNIFFIT(5)NAME
sniffit - configuration file for sniffit (name arbirtary)
DESCRIPTION
This page describes the format for the config file for sniffit (see sniffit(8) ). This file allows you to specify in great detail witch
packets should be processed by sniffit. This file also controls (or will control) some functions for the continuous logging ('-L' option).
A sniffit config file might look like (Be sure to end it with a BLANK line):
# Sniffit Sample Config file -- Brecht Claerhout
logfile /var/log/sniffit.today.log
# First select all packets!
select both mhosts 1
select both mhosts 2
# Now deselect all packets from/to those damn 'surfers'
deselect both port 80
deselect both port 8001
This file will tell sniffit to process all packets on the subnet except those FROM/TO ports 80 and 8001 (thus we don't want logs of those
mass WWW connections witch turn our logs unreadable).
GLOBAL FORMAT
The file consists of lines, lines are formed by fields, fields are separated with SPACES (NO TABS). Unix comment lines (starting with '#'
are allowed). So this gives us:
<field1> <field2> <field3> <field4> <field5>
FIELD FORMAT
<field1>
select - Sniffit will look for packets that match the following description (other fields)
deselect - Sniffit will ignore packets that match the description
logfile - change the logfile name to <field2> instead of the default 'sniffit.log'
<field2>
from - Packets FROM the host matching the following desc. are considered.
to - similar, Packets TO the....
both - similar, Packets FROM or TO the....
a filename - as an argument of 'logfile' in <field1>
<field3>
host - The (de)selection criteria involves a hostname.
port - similar, ... a portnumber
mhosts - The (de)selection criteria involves multiple-hosts, like with the wildcars in 0.3.0, but without the 'x'
<field4>
Either a hostname, a portnumber, a service name or a numbet-dot partial notation indicating multiple hosts depending on <field3>
(service names like 'ftp' are resolved as the services available present on the host that runs Sniffit, and translated into a port
nr)
<field5>
A portnumber, if <field3> was 'host' or 'mhosts' (optional, if not filled in, all ports are going to be (de)selected)
FILE INTERPRETING
The config file is interpreted SEQUENTIAL, so watch it, don't mix lines in a file. Example:
select both mhosts 100.100.12.
deselect both port 80
select both host 100.100.12.2
This file will get you the packets:
a) Send by hosts '100.100.12.*'
b) EXCEPT the WWW packets
c) BUT showing the WWW packets concerning
100.100.12.2
select both mhosts 100.100.12.
select both host 100.100.12.2
deselect both port 80
Will give you the packets (probably unwanted result):
a) Send by hosts '100.100.12.*'
b) Send from/to 100.100.12.2 (useless line)
c) deselecting all WWW packets on the subnet
AUTHOR
Brecht Claerhout <coder@reptile.rug.ac.be>
SEE ALSO sniffit(8)SNIFFIT(5)