Programming :: Extracting Block Of Text From Log File?

Nov 22, 2010

I have a log file and want to extract all blocks of text that start with START and ends with END. Each block is 5 lines.

Code:
--- START
blah blah blah

[code]...

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Programming :: Append A Block Of Text Into A Particular Section Of A File?

Mar 16, 2010

So I have file which looks something like this:

cat .opera/operaprefs.ini
Code:
[User Prefs]
Language Files Directory=

[code]...

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General :: Extracting Text From File (Apache Access Log)

Apr 23, 2011

There are some log files that I wish to get some information from (Apache Access Log) but it is huge! All I need as of right now is any information from date and time A to date and time B. What commands can I use to extract this information from the access_log and put it into another file with just that information? I created a file called "access_info" by doing
Code:
touch access_info
but I was not sure where to go from there.

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Programming :: Sed To Output Block Of Text If Specified Text Is Matched?

Feb 13, 2010

I am trying to find sed command combination to print out the "start command" line, the id line and all lines between "details" and "stop command" only if "error" exists. Here's the original output (test.txt):

start command
id 1
kajsdlfjsalj

[code]...

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Programming :: Script To Break A Block Of Text On To Different Lines?

Dec 15, 2010

I have a clump of text that needs to be broke up:gdbm Sat 07 Feb 2009 03:28:18 AM EST libattr Sat 07 Feb 2009 03:28:18 AM EST db4 Sat 07 Feb 2009 03:28:19 AM EST mktemp Sat 07 Feb 2009 03:28:19 AM EST keyutils Sat 07 Feb 2009 03:28:20 AM EST pcre Sat 07 Feb 2009 03:28:21 AM EST setserial Sat 07 Feb 2009 03:28:24 AM EST zlib Sat 07 Feb 2009 03:28:24 AM EST gawk Sat 07 Feb 2009 03:28:25 AM EST readline Sat 07 Feb 2009 03:28:26 AM EST rhpl Sat 07 Feb 2009 03:28:28 AM EST cracklib-dicts Sat 07 Feb 2009 03:28:37 AM EST setools Sat 07 Feb 2009 03:28:37 AM EST hal Sat 07 Feb 2009 03:28:38 AM EST which Sat 07 Feb 2009 03:28:39 AM EST Is there a way to get everything after the EDT in the text to be moved to a new line?

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Programming :: Extracting Last Section Of File (Separated By Hashes)

Feb 22, 2011

I have a file which looks something like this:

##########
some
text
text also includes empty lines
##########
some
more
text
##########

Basically all sections are separated by 10 hashes and I need to somehow only print all lines in the last section (the "some more text" part in the example above"). I tried all kind of things with sed and awk but I didn't find any way to identify the last "section".

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Programming :: Remove Lines In A Text File Based On Another Text File?

Jan 28, 2009

I have a text file called file1.txt containing many lines eg.

line1
line2
line3
line4
line5
line6

Then i have another text file called file2.txt contains

3
5
6

Is there a command to remove the lines in file1.txt based on the keywords in file2.txt? note: It should remove line3,line5,line6 based on 3,5,6

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Programming :: Adding Lines Of Text To Beginning Of Text File

Jan 19, 2009

I need to insert 3-4 lines of text to the beginning of a text file. The file is a largish MYSQL dump, the result of a backup shell script. This shell script should insert the required text.I've wrestled with sed, but lost.

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Programming :: Delete Line Of Text From Text File Via Shell?

Jan 13, 2010

I have to delete a certain line of text from the a textfile via ubuntu's shell scripting.I have done research, and it seems that most people advocate the usage of sed /d option. sed makes does not edit the text file. Hence, most options I discovered involved the use of a temporary variable/textfile and then overwriting the old file with the temporary new file. Is there anyway whereby I can bypass the use of temporary storage containers? I hope there is any magical combination of commands to edit the file directly.

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Programming :: Exporting Glade Text View To Text File?

Jan 8, 2011

I want to display something in my text view widget in glade using c code. that's all right.
now I need to attach a save button beneath the text view.so that on click the text view content should save as a txt file..

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Programming :: Formatting Fields And Text Being Displayed From Text File?

Feb 9, 2011

I want to display the contents of a particular log file (simple text file, I mean in Linux). But there is a problem: The contents need to be organized in a fixed format. Have a look at this log file:

sampleLog.txt

Code:

User Name: XYZ
Reported Problems Description: Blah! Blah! Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah!

[code]....

So, while displaying the contents of above file on a web page, I want to format the field names found in the log file: User Name:, Reported Problems Description:, and Remarks:. These fields may contain a variable length of text and no specific line number is assumed for them to appear on.

The desired output should look like this:

User Name: XYZ
Reported Problems Description: Blah! Blah! Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah! Blah!Blah!

[code]....

Well, what I am trying to do may sound wierd to some of you. The filed "Reported Problems Description:" can possible contain text which embeds colon (.

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Programming :: Add Text Before Line Number In Text File?

May 3, 2010

a sed command to add a text before line number in text file? I have text file with 500 lines, and i want to add 3 more lines with text after line 300, OR before line 302, isn't no problem.

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General :: Extracting Information From Multiple Text Documents?

Jul 7, 2010

I am an astronomy student using Ubunut 10.04, and a frequent user of IRAF ( an *nix image processing application geared toward astronomy). IRAF produces, amongst other things, a text document with various values on it (example below).

Code: K IRAF = NOAO/IRAFV2.14.1 version %-23s
#K USER = name %-23s
#K HOST = Balthazar computer %-23s
#K DATE = 2010-04-29 yyyy-mm-dd %-23s

[Code]...

Now, the information I'm actually interested is the X and Y coordinates down towards the bottom (in this case, 973.505, 271.474).

I have about 800 of these output text files, and I was wondering if there's any sort of script or command that could go through them (presumably reading from a list of file names), and extract the coordinates. Ideally, the output would be a list of coordinates (i.e. X-coordinate, Y-coordinate).

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Programming :: Algorithm - File System Block Number For Immediate Read

May 20, 2010

algorithm:breada
input: file system block number for immediate read
file system block number for asynchronous read
output:buffer containing data for immediate read {
if(first block not in cache) {
get buffer for first block
if(buffer data not valid)
initiate disk read }
if(second block not in cache) {
get buffer for second block)
if(buffer data valid) //line 1
release buffer else
initiate disk read //line 2 }
if(first block was originally in cache) //line 3 {
read first block
return buffer }
sleep (event first buffer contains valid data)
return buffer }

Here is an algorithm for block read algorithm. I have problem in
line 1: If buffer data is valid why is it releasing the buffer?
line 2: If buffer data valid why is it initiating disk read. It should have read directly from buffer?
line 3: It should be the first condition as if it is there in cache then it should return it without delay?

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Programming :: Script To Copy Paste Text From One File To Another (overwriting Part Of The File)?

Apr 19, 2011

I have a .txt-file with ~50.000 lines of numbers, generated by a mathematics program. From this file, I need line ~ 1.100 to line ~16.000 (these lines are always the same btw, this may make the solution easier, dunno) to be copy/pasted to another file, where the lines ~500 to ~15.000 (also, every time the same) should be overwritten by the aforementioned lines...I haven't found or come up with anything that works yet, mostly I find solutions to copy everything from one file to another but I can't find something to specifically overwrite a part of a file with part of another.

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Programming :: Create A Duplicate File Of A Text File In PHP?

Nov 11, 2010

What I plan to do is, create a duplicate file of a text file, and then append some text into the new text file.

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Programming :: Getting Table Name From A Text File?

Mar 11, 2011

I have been working on this since 3 days but wasn't able to achieve what I want

I have a big text that has the following format:

Current max fieldLen for table1 (a):
Fld# Width MaxWidth ERR NAME
---- ------ -------------- ------ ---------
2: 80 38 *** field-name
3: 4 2 field-version
4: 40 7 field-value

[Code]....

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Programming :: Add A Column To A Text File?

Apr 28, 2011

I have a text field that is just list of servers and I need to add the word hostname in front of them... It must be brain fart but I can't think of how to do this. Basically I need this:

server1
server2
server3

To this:

hostname server1
hostname server2
hostname server3

(And I just mean simply the word "hostname")

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Programming :: Sed And Rename Text In File?

Feb 10, 2011

I need a sed and renaming the text in file. we have this one:

Quote:

Originally Posted by nickname
nickname presents: $subject
Size: size

[code]....

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Programming :: Add HTML Formatting To Text File?

Jun 30, 2010

I need to extract som text from a text file. The text is a test log with system info at the top and results further down. What I need is to add different tags with formatting before and after each line. I have prepared a template with html formatting, but the number of lines in the test log may be different from case to case, so I need to be able to add formatting tags by need. Can this be done using bash script, sed, awk, head, tail... ?

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Programming :: Create Cvs From List Text File

Dec 21, 2010

I have a file with 5000 lines. it is a list of books authors, series and titles. all lines start with the author names, than there is a dash (-) than the series name, a dash again and the title of the book.

The problem I encounter is that sometime there is a series, sometime not, and as I try to enter this list in a database, I wanted to create a cvs file to import into mysql.

ex:

The best would be to be able to add in the second line, a "space dash space" just after the author name, but how to make sure it does not do it to the first line as well.

If I could separate all line with 2 dash, (grep ?) then I would be able to do a simple replace, and change the single dash into two.

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Programming :: [C++] Writing Double Value To A Text File?

Jun 3, 2011

Code:
int main ()
{

[code]...

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Programming :: Add Comma To End Of Lines In Text File?

Aug 21, 2010

I have a plain text file with 360 lines of varying length text. How do I add a comma or other symbol to the end of each line so that I can convert the file to csv format that I can open in a spreadsheet (45 rows, 8 columns). That means each 8 lines of text forms 8 columns, with 45 rows.

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Programming :: C++ Character Search In Text File?

Jun 23, 2011

Im trying to read a file in c++ and search for particular character for example if this is a list that I have:

Alice
Bob
David

[code]....

if the input is D, it should give David, if its B, gives bob. so in this case, meaning it reads the first character of every line. but if possible I want to make this dynamic so the user can specify which character position he is looking for, so in case he is looking for R as character index 3 in all lines, it should give Charlie. but the problem is, it does now recognize , besides, I do not know how to specify the character position in each line.

here is my code

Code:

#include <iostream>
#include <fstream>
#include <cstring>

[code]....

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Programming :: Comparing And Formatting The Text File

Oct 11, 2010

I need a script which can format the below text file which contains comments

Code:

Code:

Output should be:

Code:

Code:

Script should compare the column name and paste the output in above said manner.

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Programming :: Cuting/executing Text From A File?

Aug 25, 2010

I need a way to read and delete text found before a unique string, then delete the string. I would like to have the text stored in a variable--or better yet--executed it as a shell script directly.I intend to execute the stored text in bash. It does not matter much what language the program is it, however efficiency is desirable. This script is not going to be used on large files, but it may be executed many times sequentially so the faster the script works the better. Here is an example:

exclamation-"It worked!"
echo $exclamation
cd

[code]....

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Programming :: Read Text File Using Arrays In C++?

Oct 19, 2010

a project using bluetooth to send data byte by byte to external devices buti'm not familiar using arrays to read file from another location before sending the data.If you could,do correct my codes.Here's my code,

void loop(){
char Msg[]={"Hello"};
char *start;

[code]...

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Programming :: How To Append Text To Second Line Of File?

Nov 6, 2010

Say I have a text file like:
Code:
1
3
4
How would I use ksh to put the number '2' into the second line of that file?Okay it's not bash, it's ksh because this computer is OpenBSD

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Programming :: Change Info In A Text File Using C++?

Jan 16, 2011

how to work properly on the windows forms application in c++.

the thing is that i was able to produce in the windows forms application a web browser and I added a save button. So know I am able to navigate predeclared webpages such as [URL]and then I entered google's search box such as "spread of H1N1". and I surf a page such as [URL] I later save the page as text file on my computer.

I wanted to know how to organize the words in the text file ? i mean how can i just get the number of infected people in USA , number of infected in CANADA (if they exist) from all the text file and change it to a file with precise data.that is to eliminate the unneeded information such as the the characteristics and the useless ideas? and what if i also wanted to know the characteristics of the virus in a country+the number of infected?. How can i do it?

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Programming :: Inserting Some Text Into A File Using 'awk' Command?

Oct 20, 2010

I'm gonna replace my machine's ip address and hostname using awk command. the pattern of the file is like the following...ip address="192.168.1.100"the script must ask the ip address from the user and replace it with the ip address in the quotation.

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