Programming :: Read A File And Parse A String In C++

Jul 26, 2010

I need to read a file and parse a string. I know in Perl there is the split command. Is there something similar to that in C++?

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Programming :: Perl Read File And Parse Blocks?

Aug 21, 2010

I am trying to make a perl script which reads data from a file and parse it. The data in the file has the following syntax

Code:
Device Physical Name : Not Visible
Device Symmetrix Name : 1234
Device Serial ID : N/A
Attached BCV Device : N/A
Device Capacity

[Code]...

Each unique record starts with "Device Physical Name". So, I have a set of records within "Device Physical Name". I want to read this set of records starting from "Device Physical Name" and ends up till next "Device Physical Name". Offcourse FS is ":", and I just want to print/or later put info in a csv file.

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Programming :: Awk Parse String With Space?

Feb 4, 2010

How to let awk consider a string by double quota as one field? for example:

echo "first "second is a string"" | awk '{ print $2 }'

I want to print out "second is a string".

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General :: Parse File From Remote Server To Caculate Count Of String Existence In That File?

Aug 30, 2010

I need to parse the file of same name which exist on different servers and calculate the count of string existed in both files.Say a file abc.log exist on 2 servers.I want to search for string "test" on both files and calculate the total count of search string's existence.For example if file abc.log on server 1 has string "test" 2 times
and file abc.log on server 2 has string "test" 4 times.then the output will beStringName : Countexampletest : 6 timesNote : I have created the password less connectivity using ssh-keygen.

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Programming :: Why Does Strptime (c++) Seem To Not Correctly Parse Date/time String

Feb 8, 2010

here is the problem code using strptime() function.

==================
#include <stdio.h>
#include <string.h>
#include <time.h>

[code]....

Why are the Month and Year so messed up? I am using strptime() according to the man page.

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General :: Script To Read File And Parse Log Message

Apr 5, 2010

I am working on the script to parsing the specific message like "aaaa" in multiple log files like N1-***,N2-***,N3-***..The script is to find the list of lof files which contains the message "aaaa" and export the list into excel filE.

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Programming :: Working With System Call - Read Output And Parse Values

Dec 10, 2010

I have the following code:
Code:
#include <stdio.h>
#include <stdlib.h>
int main() {
system("ps -ef | grep myprocessname");
return 0; }

When I run this program it outputs the following list of running processes:
Code:
root 10279 10275 0 13:02 ? 00:00:00 myprocessname myvar1=value1 myvar2=value2
root 10341 10337 1 13:02 ? 00:00:00 myprocessname myvar1=value1 myvar2=value2

What I want to really do is instead of writing the output to screen I want to read the output and parse the various values value1, value2 etc. What is the best way to do this?

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Programming :: How To Read A String And Add It At The End In Unix

Jun 9, 2010

I want to read the line in the text file and get the string in the file and paste it in the directory column

for example i have a line like /ftp/prod/SWC1407.DOC

from this 1407 should be parsed and appended at the end of the move command

mv /ftp/prod/SWC1407.DOC /nfp/1407

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Programming :: C - Read A String Into Shmget And Shmat?

Mar 8, 2010

I want to read a string into shared memory using shmget and shmat. I'm using something like:

Code:
char *bookmark_strings, *s;
Book_Key = ftok(SHM_LOC,SHM_KEY);
shared_bookmarks = shmget(Book_Key, MAX_BOOKMARKS * sizeof(bookmarks), (0644 | IPC_CREAT));
bookmark_strings = shmat(shared_bookmarks, NULL, 0);
s = bookmark_strings;
*s = "hello";

I know that since it's a string I should be using something other then just char, but with something different shmat fails to be assigned.

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Programming :: Read A Blank Line Ie A String Of Length 0?

Apr 19, 2010

in gcc how to read a blank line ie a string of length 0.my code:

Code:
#include<stdio.h>
#include<string.h>

[code]...

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Programming :: Parse A File Containing Billions Of Records?

Nov 17, 2010

I have to parse a file containing billions of records and populate them in the Data structure. I have used a lot of C++ class and creating objects of the class I am storing the information retrieved by parsing the file.

Now as the file become huge and number of objects become very large my code is getting bad_alloc error as it is not finding any space avalable in the heap for allocating new object.

Is there any way to parse the file?

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Programming :: Parse The File Correctly With Python

Nov 27, 2010

I'm currently curios with my python program which the basic goal is to parse the character in mytestfile;let's see the code

Code:
f=open('/home/andrewraharjo/Desktop/snort.log','r')
j=f.read()

[code]...

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Programming :: Parse And Modify File Without Creating A Copy?

Nov 4, 2010

I don't think this is a "perl one-liner" of find and replace. I'm trying to auto-fill some information in a listing of files. The simplest example is that in the files the following exists:

I would want the script to find this and populate it with something like -- Date : 20101004-1758

I have a few more similar fields to autofill, and I'd like to do this from within a larger perl script I'm developing to process these files. So, how I perform in-place file modification from within a perl script?

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Programming :: When Parse A XML File - Should Rely On The Order Of Elements?

Feb 24, 2010

When I parse a XML file, should I rely on the order of elements?

For example say we have:

Should I rely on the above order?

Would the following still be valid:

I'm trying to find out if a well formed XML document should have an ordered structure, or if it's still valid XML if it has no order.

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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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General :: Parse String In Bash Script?

Nov 8, 2009

I have to create a bash script that takes an arbitrary length number from the command line, and add up each individual digit

Ex:
server> myscript.sh 123
server> 1 + 2 + 3 = 6

The problem I'm having is pulling out each character.

Is there a way in bash I can parse the input string for each character? I can't figure out a way to do this.

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Programming :: Parse A File Using Html Parser By Libxml - Undefined Reference

Jan 13, 2011

iḿ trying to parse a file using html parser by libxml.

Code: #include <stdio.h>
#include <libxml/HTMLparser.h>
#include <string.h>
void main(){
printf("main
");
[Code]....

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Programming :: Copy String A To String B And Change String B With Toupper() And Count The Chars?

Oct 22, 2010

copy string a to string b and change string b with toupper() and count the chars

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General :: Parse A Particular String In Files In Particular Directory And Its Sub-directories?

May 4, 2010

I want linux command to parse a particular string or pattern in files that are in my home directory and its sub-directory.

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Programming :: Variable String File Base - Output File Doest Not Exclude The Values In Grep -av

May 1, 2011

My script.

This is may script:

Code:

Problem: Output file doest not exclude the values in grep -av

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Programming :: Perl Find File And Then Replace String In File

Jul 28, 2009

I have script that I'm working on that updates a username in all the files that are called blah.inc for my framework. since i host a bunch of these web apps i need to do it to all of them. so I need to figure out how to update these files automagically with out me watching it to call vim every time. heres what I have so far

Code:

This finds the files but now i need to figure out how to do s/bob/fred/g on those files.

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Programming :: Finding Only String (Already There) In File

May 10, 2010

I have a file in which I have string called "already there" in some line of it. I want that if the string is present enter some loop..

like
if(( grep "already there" $file is true ))
then
--
--
fi

But the thing is when I make grep it gives the whole line in which this string is present and gives some error: if[ grep "already there" file ]: command not found. I am very new to shell scripting.

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Programming :: Replace A String Within A File ?

Feb 28, 2009

I've found some scripts that replaces a string in a file but it's not quite working for me.

And I'm trying to replace a tag in an xml file that looks like this

So I ran a command line like this perl -w -i -p -e "s/xmlns="'http://mydomain.org/replacethese.xsd'">/>/g" testfile.xml

And I get a error output

Search pattern not terminated at -e line 1.

Found the script from this blog [url]

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Programming :: Find A String In A File Without Using Grep?

Oct 27, 2010

I want to write some code to search for a specific string in a text file, but without using grep command.

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Programming :: Bash Removing String From File?

Aug 7, 2010

I am trying to remove everything before my string code...

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Programming :: Replace 2nd Occurrence Of A String In A File - Sed Or Awk?

Apr 5, 2010

I know how to replace a particular instance (say 3rd one) of a word in a line using sed based on the sed one-liners. However I would like to replace a particular instance of a word in the entire file.

For example, here is a file:

Code:
John
Betty
Jack
Ron
Jack
Paul

So now I would like to replace the second instance of Jack (in red color) with "Rob" (for example). Not quite sure how to do that? I tried couple of things from here but they did not work.

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Programming :: Replace String In File Using Perl Or Sed

Jun 30, 2011

I have question about replacing a string in a file.

How can I replace the printerb's 10.1.1.1 to something else(10.1.1.2, for example) without replace printera's 10.1.1.1 accidentally?

I have tried perl -e -pi "s/10.1.1.1/10.1.1.2/g" /etc/hosts. but, perl replace both 10.1.1.1 to 10.1.1.2.

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Programming :: Copying A String From One File To Another In Shell Script?

Nov 10, 2010

Code:
function forcd
{

[code]...

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Programming :: Delete Line In File Matching String?

Jan 26, 2010

Quote:Originally Posted by topcatI would like to know how i can write a shell script to delete a line if a particular pattern exists?E.g. I have a text file with multiple lines. Say 1000s. in the following pattern.

username@email.com:149.0.3.4:1
username1@email.com:149.0.3.4:1
username1@email.net:149.0.3.4:1
username1@email.edu:149.0.3.4:1

If the patternusername@email.com exists then the line "username@email.com:149.0.3.4:1 should be deleted from the file.I have a very similar question but I need to delete one line in a file which matches one very precise instance of a string only. Let's assume I have a file composed of thousands of lines and let's call the file chap-secrets. Let's take the following sample entries:

Code:
#USERNAME SERVER PASSWORD IP
pp pptpd blahblah *

[code]....

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Programming :: Find String In Text File And Add Something To That Line

May 26, 2011

I want to know how can I add something to a specific line.. the output would be something like:
abc
def 123
ghi

Search for string "def" and add something to that line.

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