Programming :: Text Manipulation With Bash For Snort Alert

Nov 26, 2010

I have a little problem about string in Snort alerting. I understood about Snort alerting saved in /var/log/snort/alert and Snort will add a new entry if there was a attack from anywhere. Then here's my problem. Because it has a lot of file on it, all I want to do is parse that string in snort alert then make into simply log files with it. I'm getting confused with Snort alert and parse that file.

Here's the simple algorithm; Snort get the alert <- parse the alert with my parameter which I've configured with bash (ip address, dest, kind of attack and time) <- then sent that parse alert into new text (let's called snortsent.txt) <- after ten alerts then clear the text then waiting again until the Snort alert go on -> back to snort alert. Here's the sample of my snort alert: (/var/log/snort/alert)

[Code]....

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Fedora :: Text File Manipulation With Standard Commands In BASH - Remove The Stock Code

Oct 10, 2009

I need to do some text file manipulation which I think should be done with standard commands in BASH. I'm looking at comma seperated text files (stock market data). It comes in the form of date, stock code, open, high, low, close, volume. What I need to do first is move all data with same stock code sequentially into individual files.

While doing this since the stock code will now be the file name I need to remove the stock code. Next I need to filter out overlapping data from different files with the same date. ie. where two files contain the same date on the one line only one line will be added to the combined file. I think there must be a tutorial out there for basic text manipulation like this, I just haven't found it yet.

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Programming :: Bash - Reading Csv Delimited File To Array And For Further Manipulation?

Jan 6, 2010

I am trying to do this:

1. Read csv delimited file line1 and store all values in array

2. Use the values stored in the array and replace values in other text file with them

3. read line2 in the cvs file and repeat the process

4. Do above for all lines in the cvs file

for example:

file1.cvs content:

text1,text2,text3,"text 4"
a1,a2,3,"a 4"

file.txt content:

some text $array1$ some text
some text $array2$ some text

1. read line 1 - text1,text2,text3,"text 4" put each value in array X[] lines that contain spaces in cvs will have double quotes

2. read x[1] and replace value $array1$ (in file.txt) with x[1]read x[2] and replace value $array2$ (in file.txt) with x[2] and so on

Can above be accomplished in BASH and how?

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Ubuntu Security :: No Alert Found In Result From Snort

Mar 3, 2010

I have installed snort + mysql + acid base, I add some rules into /etc/snort/rules/local.rules to test the alert:

alert icmp 192.168.1.20 any -> 192.16.1.21 any (flags:A;ack:0;msg:"NMap icmp ping")
alert icmp 192.168.1.20 any -> 192.16.1.21 any (content:"abcdefgh";;msg:"ping de windows")
alert icmp 192.168.1.20 any <> 192.16.1.21 any (flags: S; msg: "HOULA SYN Packet!"

After I restart snort and I tied 2 pc by cross cable (192.168.1.20 for windows and the victim is 192.168.1.21 for Linux where the snort is installed), my HOME_NET 192.168.1.21 and the EXTEREL_NET !$HOME_NET. The problem is when I run:
snort -dvi eth0 -c /etc/snort/snort.conf

I see the packet transmitted and received (the received conten "abcdefgh" ), when I stopped snort CTRL+C I don't found any alert in the result!!! Run time prior to being shutdown was 218.523030 seconds.

Packet Wire Totals:
Received: 1346
Analyzed: 1342 (99.703%)
Dropped: 0 (0.000%)
Outstanding: 4 (0.297%) .....

dcerpc2 Preprocessor Statistics
Total sessions: 0
database: Closing connection to database "snort"
database: Closing connection to database "snort"
Snort exiting

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Debian Programming :: BASH Script For Battery Alert (Low)

May 19, 2010

I'm trying to make my own BASH script for alerting low battery. It's working well, but it simply show messages, whether the state is 'Discharging' or 'Charging'.

Here is the code:

Code: Select all#!/bin/bash

#checking sleep time
SLEEP_TIME="60"

#actions
ACTION="xfce4-terminal -x sudo shutdown -h now"

[Code] ....

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Programming :: Bash Text To Variable Accessing Individual Text Lines?

May 2, 2010

i am on processing text tasks And i found that if you assign a text to a variable is chomp'ed automatically the newline

Code:

variable=$(cat file.txt)

The problem is i can only access the items/lines using:

Code:

for line in $variable
do
echo $line
# Other commands
done

how do i convert this to an indexed array. More importantly, how do i get access to individual $line[0], ..., $line[n] Another thing, if the file.txt, has lines with spaces it is a mess using the for...in..., but echoing prints line by line...o_0

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General :: Text Manipulation Using Sed - Convert The Characters

May 7, 2010

I have a number of text files (26 per database x 100+ databases) which need 'correcting' in order to import into postgresql. I think that I have identified all the problem characters and I need to automate the process as much as possible. I have a script to convert the characters and I do them one by one (not effecient but easier to understand).

[Code].....

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Debian :: Image Manipulation In BASH?

Nov 7, 2010

I would like the ability to manipulate a jpg (bmp, gif and raw would be nice as well) while in BASH. To be more specific, I would like to either add a water mark or a little section as a footer on the bottom of an image.

I will be using this as part of a shell script to alter files in a directory on my webserver.

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Ubuntu :: Text Manipulation - Regex - Pattern Matching?

Jul 12, 2010

Are there some good tutorials or reference materials on how do pattern matching and text manipulation in Linux?I have a few simple tasks I'd like taken care of...like formatting numbers in file names, stripping some text from directory names, etc

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Ubuntu :: Image Manipulation In Bash Scripting?

Jul 5, 2010

I have a bash script that inserts some text onto every image at a certain place within a directory.

Heres what I have (from a German friend who appears online once in a blue moon), this is the line that resizes to a maximum of 800 either width or height and puts in the text 'text goes here'.

convert ${bild} -resize "800x800>" -strip -family Arial -pointsize 16 -draw "gravity southeast fill rgba(255,0,0, 1.0) text 10,10 'text goes here'" ${dstdir}/${bild}

Now, I would like to know how to place a PNG image (a watermark, so to speak) over all images within a directory in a certain place, so how would I go about modifying this line to place an image instead of the text?

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General :: Column Manipulation In Bash Script

Mar 19, 2010

I have a text file and I need to replace the 3rd column of that file from row 3 to the end of the file with a column which I have stored in the different text file. For e.g the original file is like given below:

a.txt nobla 6 gadf 72.500 1.600 1.800 .850 5.250 8.540
A# rad ang ht prf bk sd dia type blade
1 0.3081 9.00 1.9235 -17.50 18.00 -3.00 0.6250 1613 1
2 0.6509 194.00 2.0316 -17.50 18.00 -3.00 0.6250 1613 4
3 1.0128 8.00 2.1457 -17.50 18.00 -3.00 0.6250 1616 1
4 1.3748 192.00 2.2598 -17.50 18.00 -3.00 0.6250 1616 4
5 1.6986 7.00 2.3619 -17.50 18.00 -3.00 0.6250 1616 1
6 1.9347 120.00 2.4364 -17.51 18.00 -3.00 0.6250 1616 5
7 2.1327 190.00 2.4988 -17.34 18.00 -3.00 0.6250 1616 4

So lets say I wanna replace column 3 from row 3 to row 7 with a data from another file which is given below:
54.00
239.00
53.00
237.00
52.00
165.00
235.0

So the final output file should be like this:
a.txt nobla 6 gadf 72.500 1.600 1.800 .850 5.250 8.540
A# rad ang ht prf bk sd dia type blade
1 0.3081 54.00 1.9235 -17.50 18.00 -3.00 0.6250 1613 1
2 0.6509 239.00 2.0316 -17.50 18.00 -3.00 0.6250 1613 4
3 1.0128 53.00 2.1457 -17.50 18.00 -3.00 0.6250 1616 1
4 1.3748 237.00 2.2598 -17.50 18.00 -3.00 0.6250 1616 4
5 1.6986 52.00 2.3619 -17.50 18.00 -3.00 0.6250 1616 1
6 1.9347 165.00 2.4364 -17.51 18.00 -3.00 0.6250 1616 5
7 2.1327 235.00 2.4988 -17.34 18.00 -3.00 0.6250 1616 4

And I will post the code whatever i have tried soon. I started with awk and cut commands..but never got it to work and also tried PASTE command too.

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General :: Text Manipulation Find / Replace Variable Efficiency?

Aug 27, 2010

What I have works, but wondering what is the 'right' way to replace the digits with the letters given in this loop? somehow use a case or multiple sed? i thought of a multiple sed or a case but couldn't get it to work

Code:

# ...
bcv=$(echo $line | awk -F" " '{ print $1 }' | sed 's/1/q/g;s/2/w/g;s/3/e/g') # and so on

Code:

while read line
do
bcv=$(echo $line | awk -F" " '{ print $1 }')
if [ $bcv == "" ]

[code].....

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Programming :: Bash - To Prepend Text To Variable

Feb 13, 2010

The output of following code is not like it's intended ...

Code:

This is the output:

Code:

Test prepending ...apple is a nice word, hour is a nice word, But of course what I want to do in the first set of commands is to prepend the word "an" to the words "apple" and "hour" in the for-loop.

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Programming :: Bash - Remove From Text Table?

Nov 7, 2010

i have a table in a text file. How can i remove from that table for example "SLS= " if the value is empty? Is it possible to do it in bash awk or sed? [URL]

10.25 SLS=* G.V.=* BBU=122 G.V.=14
10.28 SLS=196 G.V.=198 BBU=* G.V.=*
10.08 U.T.=* I.M=--
10.15 U.T.=-0.522 I.M=*

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Programming :: Reading From Text File In Bash?

Nov 8, 2010

I need to Read a path of a file witch is written in Text file i used this

Code:

FILENAME=$1
while read line
do
echo $line
done < $FILENAME

it worked and showed me the Line witch was written in my file but now my problem is how am gonna use that line as a path i mean for example if am gonna execute a linux command on that file like dpkg -i /path/to/the/file how am gonna export it from The $Line variable and use it after the command.

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Ubuntu :: Sending Alert Via Text Message?

May 8, 2011

is it possible to send text message alerts instead of emails to a phone from ubuntu?...

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Programming :: Bash: Split A Text File Into An Array?

Sep 18, 2010

I have a file (called twitterstatus.tmp) that looks like this:

Code:

<status>
<id>24854489768</id>
<text>Are we gonna ride the sun home?</text>
<id>55266987</id>

[code].....

How could I feed this into an array, with each element containing everything between the <status> </status> tags?

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Programming :: Easier Way To Color Text In Perl Like BASH?

Apr 8, 2010

I've been trying to figure out a way to more easily color text in Perl like I do on Bash on a Linux box. In bash, what I'll do is set color variables up to equal the escape sequence, then echo out with escape seqeunces to print it exactly how I want it. Typically I'll want a character or a word in a different color, not the whole line. For example

echo -n -e "My face is turning ${RED}red${UNCOLOR} like a lobster." In Perl with the term::ANSIColor module, it seems to just do a line. Am I being dense? Is there a way that I can do it like I do it in BASH that's fairly easy to read after the fact?

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Programming :: Get The Specific Text From A Txt File In Bash Script?

Apr 30, 2010

I have a text file which stores the list of files & dir, I want to get only file's extensions from this file & want to store it in another file.eg, below is the file's contents & from it I want to get the extensions sh, pl & h & want to store it in another file. Also I don't want directory list.

A scripts/services_restarter.sh
A scripts/svn post_commit scripts
A scripts/tmp/

[code]...

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Programming :: Write An If Statement For The First Line Of A Text File Bash?

Feb 15, 2011

At the moment I got my md5sum checking working which I write to a text file and see below.

If the md5sum works it will write the output to check2.md5 test.txt: OK

If the md5sum fails it will write test.txt: FAILED

How do I write if statement to check the output whether or not the md5sum failed or not ?

check1="/home/ops/Desktop/test1/check1.md5"
check2="/home/ops/Desktop/test1/check2.md5"
cd /home/ops/Desktop/test1
md5sum test.txt > $check1

[Code]....

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Programming :: Find String In Text File (bash Script)

Apr 17, 2011

write such script (bash script). I have some text file with name filename.txt I must check if this file contains string "test-string-first", I must cut from this file string which follows string "keyword-string:" and till first white-space and save it to some variable.

For example. File: PHP Code: PHP Code:
Start 15022011 Eng 12-3-42
SN1232324422 11 test-string-first
SN322211 securities
HH keyword-string:123456321-net mark (11-22) 

[Code].....

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Programming :: (BASH) How To Read Multiple Lines From Text File

Mar 11, 2011

For example, I have a text file with data which lists numerical values from two separate individuals

Code:
Person A
100
200
300
400
500
600
700
800
900
1000
1100
1200

Person B
1200
1100
1000
900
800
700
600
500
400
300
200
100

How would I go about reading the values for each Person, then being able to perform mathematical equations for each Person (finding the sum for example)?

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Programming :: Bash: Feeding Input To A Script From A Text File?

Nov 17, 2010

I have a script which checks on my jobs that run on some cluster.The script, "script.sh", takes as an input the job-id for the job to be checked. Sometimes I have 100s of jobs and I want to check them all (for successful completion.) I could put these job-ids into a text file, "job-id.txt", each id in its own line.For each job-id, the script would ask me few questions (with a yes or no answers) to see if I want to do some other checks for each job-id.I want to know how may I direct my job-ids from this text file into the script one job-id at a time.

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Programming :: BASH Scripting: Hide Plain Text Passwords

Jun 15, 2010

I was wondering if there is way to hide passwords in bash scripts. For example: I have to write a script to export a full ldap structure, and I'm using the ldapsearch -y passwordfile, where password file is a plain text file that contains the password. Is there a way to hide the password from that file?

I was thinking to remove the r attribute from the file and before the script is lunched to put the attribute back, but is not a good solution, the same with immutable attribute.

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Aug 11, 2009

Is there a way to process individual characters one-by-one from a text file in Bash, or is that hoping for a little too much from this lovable old clunker?

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May 15, 2009

Is it possible to create a text based menu layout in bash were it is possible to browse through. The menu list should look something like this:

----------------------------------------
user: root
colour: blue
number: 4
animal: dog
----------------------------------------

At the start the cursor should blink at the r from root so that text can be entered. When pressing the enter the cursor should go to the b from blue and so on. the imported thing is that all the text is visible also beyond the position from the cursor.

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Programming :: Parse Multiple Variable From Text File With Bash?

Jul 13, 2010

I am trying to think of a logic where my file contains some data I had to read and do some processing. Issue is that file contains data multiple times. For example:

:::::::::::
var1=value1
var2=value2

[code].....

I have to read first paragraph of variables and do some processing and then move on until the end of file. Variable names are same in whole file but for each paragraph the value is different. I can't think of a logic to attain this task. How can I do it? It should be a simple bash script, but I am not able to work out.

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Programming :: BASH Read Text List Zip Files Into A Single Archive?

Jul 22, 2010

AKA "zipping on the fly .. the slow-as-molasses way." The list includes full pathnames to each file, and they're all in subfolders of the same parent folder (which, unfortunately, is not the root folder of the drive or system on which the files reside). A cleaned-up and radio-ready portion of the list looks like

Quote:

.../taiga/ahqr-va-choyvp/bv0884-073.jpg
.../taiga/ahqr-va-choyvp/bv2635-073.jpg
.../taiga/ahqr-va-choyvp/bv3067-175.jpg

[code]....

What I'd like to be able to do is zip all the files in the list into a single archive, to avoid the step of having to copy them to the same location (presumably another folder on the HD) and then zip that folder. I'm more inclined to make provisions about extracting to a single folder at some other time. Is this possible in BASH, or would I have to consider a faster, more robust scripting language such as python or perl?

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May 29, 2011

PI'm trying to write a script to list all open ports in the MINIUNPND chain in iptables and use the procotol, port and destination ip to open ports on another router using upnpc.Here is the output of iptables -L MINIUPNPD

Code:
>iptables -L MINIUPNPD
Chain MINIUPNPD (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere 192.168.3.124 tcp dpt:19955
ACCEPT tcp -- anywhere 192.168.3.124 tcp dpt:20054
ACCEPT tcp -- anywhere 192.168.3.130 udp dpt:10654
ACCEPT tcp -- anywhere 192.168.3.121 tcp dpt:29955
code....

No matter what i do i cant seem to remove the first 4 characters from the MYPROT array to leave only the digits. Also i cant seem to read the array back???

I thought it would simply be a loop reading each line and passing the fields in variables, executing upnpc commands i need then moving to the next line of the file until it reached the EOF.

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Jul 30, 2010

I want to share file locations with pc users (i'm a mac user). problem is: mac uses fslash, while pc files are indicated with baskslashes. I'm looking for a automation/plugin/shortcut/... to change them quick. I use paths a lot and share them with pc users, so manually it's to time consuming.

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