Slackware :: Searching A Byte Sequence Within A File?
Dec 11, 2010Code:dd if=/dev/sda bs=1 count=2048 of=johnIs there a linux tool to search for a sequence of bytes within john? E.g., to look for 0x6a84b5fe78 ?
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Programming :: Memcpy Fails To Copy Data / But Byte By Byte Assignment Work
Jul 6, 2011I got across a peculiar problem with memcpy.History:writing a code which do flash/Read functionality for SPI Parts.
Implementation:
1.memory map the Flash chip registers to userspace. - fine
2.Issue block read command
3.Just print the data I got, using the memory mapped address - fine I got the correct data.
4.Copy the data to a local buffer from memory mapped address using memcpy - FAIL
UPDATE:
on SUSE 11.3 -32 bit the above code worked perfectly, but on SUSE 11.4 - 64bit , Ubantu, Fedora it failed.
I am using gcc compiler obviously. I am using i386/x86_64 OS. Processor: Intel core 2 duo, SNB after step 4 , when I dump the data from local buffer every thing is FF.But step 4, if i implement byte by byte copy using assignment operator, it worked.is there any known bug with memcpy? am I missing anything?
General :: Recreating A Column Byte-based File?
Nov 5, 2009I have a file that stores employee login IDs, names, types, and permissions. Our software reads the information based on byte-columns, so it reads a column as any ASCII character (spaces, letters, numbers, punctuation, etc.). I want to create a web-interface for adding and removing users, and storing the data in a MySQL database. However, if I am creating the files from the MySQL output, I need a way to write to specific column locations in the file ...
User ID: Columns 1-4
User Name: Columns 6-30
Type: 32-40
Permissions: 42-45
I want to use a scripting language, preferably C-Shell, to call MySQL for the data and write the data to the correct columns of the file. I wrote a script that takes the data from the file, and dumps it into the MySQL table, so maybe I can pad the remaining space in the table column to fill with spaces ...
Networking :: Statistic About Interfaces From /proc/net/dev - File Is Reset When Get Reach More Than 4G Byte
Jun 27, 2010I have to get soem statistic about interfaces from /proc/net/dev. but statistic on this file is reset when get reach more than 4G byte.I think linux has limitation on this case.
View 1 Replies View RelatedSlackware :: Getting Error During ( Kernel ) Boot Sequence?
Mar 15, 2010I've just seen a strange set of error code during my boot sequence:
WARNING: at mm/page_alloc.c:1813 __alloc_pages_nodemask+0x5ce/0x6c0()
Hardware name: MS-7250
Modules linked in: lp fuse nvidia(P) joydev snd_cmipci gameport rtc_cmos rtc_core thermal processor snd_pcm snd_page_alloc snd_opl3_lib snd_timer snd_hwdep snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore thermal_sys i2c_nforce2 rtc_lib button agpgart k8temp hwmon psmouse sg i2c_core ppdev parport_pc parport forcedeth serio_raw evdev
Pid: 1543, comm: mount Tainted: P 2.6.33 #2
Call Trace: .....
The machine appears to run normally otherwise.
General :: Searching This Wallpaper For Slackware
Aug 2, 2010I am in love with this wallpaper [URL] for slackware. I serched in google until page 32 and no image appear that match this one.
View 5 Replies View RelatedSlackware :: Can't Boot Laptop - Sequence Halts While Loading Syslogd
Dec 27, 2010All of a sudden my laptop decided to not bootup. It stops while loading syslogd. I started up in single user mode and added a few echo statements in rc.syslog so it looks like:
Code:
This means that execution of the script doesn't seem to get past the "/usr/sbin/syslogd" line. Well at least thats the case in the first 2-3 minutes. Afterwards my screen gets flooded with the next echo I placed "caught in the loooooop!".
Again, stating the obvious, the script reads on and gets caught in the while loop. obviously there is no /dev/log and something must have messed up the execution of syslogd. what could that be it?
Recently I was fiddling around with jackd and trying to setup a jack-rack on my laptop. To do that I had to recompile alsa-driver from scratch in order to include the virtual soundcard driver. I also had to rebuild the mainline kernel to add low-latency (I did not switch to kernel-rt). Overall, I've been running with a custom kernel more than 2 months now and never had a problem with syslogd startup. The new low latency custom kernel is just like the previous one but with only difference the low latency setting. With the low latency kernel I've been using the pc for approx a week and have done 5+ reboots. So the problem appeared now out of nowhere...
If I disable rc.syslog and I start the pc, and then start it up, syslogd with execute nicely and quickly as if there was no problem, ever...
General :: Searching Content Of The File Using File Browser Nautilus?
May 27, 2011I'm using rhel6. Using File Browser Nautilus 2.28.4 I could easily locate any file I'm interested in by it name. I'd like to use this File Browser to locate the file name based on it content e.g. based on some word in the text file. It doesn't work for me that way ... My question: does Nautilus support the search of file based on it content or only based on the name of the file itself?
View 4 Replies View RelatedSoftware :: How To List File Sequence
Oct 31, 2010If I have sequence of image file like this:
image.0001.jpg
image.0002.jpg
image.0003.jpg
...
image.9999.jpg
Is there anyway to list all file like this?image.[1-9999].jpg
Slackware :: Clear The Highlighted Results After Searching In Elvis And Other Text Viewer Programs Such As Less?
Apr 4, 2010how do you clear the highlighted results after searching in elvis and other text viewer programs such as less?Also I know it's been mentioned before, but why does pat prefer elvis to vim? Just a personal preference?
View 9 Replies View RelatedFedora :: 0 Byte Initrd File In Kernel Kernel-2.6.27.25-170.2.72.fc10.x86_64
Jul 13, 2009I'm I seeing this wrong or is the initrd file in kernel-2.6.27.25-170.2.72.fc10.x86_64 a zero byte file and that's why I can't boot with it( get this "kernel panic not syncing VFS unable to mount root fs on known -block (0,0)" message)
View 2 Replies View RelatedGeneral :: Replace Sequential Numbers In A File With A Different Sequence Using Sed?
Apr 11, 2010I am trying to find a way to replace a set of sequential numbers in a file with a different sequence using sed. This might be done easier using awk or some sort of bash script, but it seems to me there must be a way to do this easily with sed. Basically, what I am editing is a Cisco switch config. I want to change the sequence of ports to a different numbered sequence. Here is an example of what I am trying to do.I want to change for example, the file:
Code:
cat testfile
interface FastEthernet0/1
[code]...
Software :: Use Grep Through A Binary File For Sequence Of Bytes?
Apr 7, 2009Is it possible to use grep to search for a sequence of bytes? For instance say I was looking for the following byte sequence in a file:
64 03 40 30 ; add eax, fs:[eax+30h]
Is this possible to do using grep?
General :: Split A File, Byte-wise, Not Character-wise?
Nov 17, 2010I want to split file foo into two parts, and I only intersted in the first one. But the N bytes in which the first part consists, I want it to be an exact replica of the corresponding bytes of foo. More exactly:
Code:
foo foo1 foo2
==============================
90 90 05
[code]....
General :: Searching For Number Within A File?
Nov 9, 2010I'm currently trying to design a small, simple enough shell program for area codes. I have a list of area codes in a database, and I am trying to write a program that will have a user input an area code, and then have the program print out information that immediately follows that area code in my database. I assume I need to use a find or locate command, but I'm not sure if I should be searching for a string or the number itself. The number could possibly occur at some other point in the file, though the way I have the file set up it only occurs once at the newline.
what function I should use and how I should go about it? As is I only have the absolute bare-bones beginning of having an echo for the prompt to input an area-code, and the read once it's input. Without the find I'm not sure how much farther I can get. Also, would it make it easier if I added some character such as a ! to the end of the number at the newline to make it easier to search for? With a macro that would be easy enough to do.
Programming :: Searching File In Directories?
Feb 23, 2011I am trying to search particular directory which has files with extensions like .html,.mp3,.xml etc I have a list of such files
What I am doing in my script is
for file_name in `find /home/ -name index.html -o -name song.mp3 -o -name help.xml`;
do
if [ $file!='' ]
then
[Code].....
Software :: Searching Within A File Using Bash?
Jul 22, 2009i get the desired result with
find . -name "*" | xargs grep -i "*searchPattern*"
---but not with
find . -name "*" | grep -i "*searchPattern*"
why this difference?
Hardware :: Searching For Clustered File System?
Feb 1, 2011I'm looking for a way to have two hosts talk to the same volume without the need for backend host communication ie. clustered file systems? Does anyone know of a clustered file system that will allow this? The basic idea I have in my head would be turn off caching and utilize stubs or pointers to let each host know when to reread new data? The hosts will not be writing to the same files or directories at the same time. They will also be targetting certain information in certain locations on the volume.
I'm trying to join two enclaves to pass data without networking. One host will drop a file and write a stub saying the file is there. The second host will then pick up the file analyze it and then drop a report so that the first host can then pick the report up.
Applications :: File Index And Searching Software With Web Interface?
Jan 29, 2011I have a set of PDFs I'd like to index and made searchable. Most importantly, I'd like a web interface so I can search and access remotely. This morning I researched into several different options, but all seemed to fail.
Google Desktop Search - No good because web interface is only to the local host
Beagle - No good because it is no longer support and there are executation errors when running in Maverick
Recoll - No web interface
Strigi - No web interface(?)
I recall using one about 2 years ago that was deployed on Apache Tomcat, but I can't remember the name.
Programming :: Searching Pattern In Tab Delimited File Using Grep
Mar 4, 2010Suppose i have a file(1.txt) separated by TAB delimiter in a line
1 B AB 2
2 C AB 2
if I need to search for the records having B?? using grep.If i need to perform multiple search like line having "C and AB" or "B and AB"??
Programming :: Shell Script Searching File In A Directory?
Feb 23, 2011I am trying to search particular directory which has files with extensions like .html,.mp3,.xml etc I have a list of such files What I am doing in my script is
for file_name in `find /home/ -name index.html -o -name song.mp3 -o -name help.xml`;
do
if [ $file!='' ]
then
[code]....
I have around 100+ files name with some particular extension , this code works fine if the directory name does not have any special character in it like " "(white character) .
It is failing to give the output. IF I run the find command on the console the I am getting the correct file name with location
/home/user1/public_html/mediawiki/config/movie.mp3
/home/user1/public_html/mediawiki/movie.mp3
/home/user1/public_html/mediawiki/pop.mp3
/home/user2/public_html/index test/pop.mp3
/home/user2/public_html/index test/web.xml
/home/user2/public_html/song.mp3
If I echo the file name from the script Then output is little missed match when a directory name has special char like " "
/home/user1/public_html/mediawiki/config/movie.mp3
/home/user1/public_html/mediawiki/movie.mp3
/home/user1/public_html/mediawiki/pop.mp3
[code]....
I am not sure what is wrong with script or my code .. Does shell have un-controlled behavior of manipulating the output of any command.
Debian Programming :: Searching For A List Of Strings In File With Python
Oct 14, 2013I'm trying to search for several strings, which I have in a .txt file line by line, on another file.
So the idea is, take input.txt and search for each line in that file in another file, let's call it rules.txt.
So far, I've been able to do this, to search for individual strings:
Code: Select allimport re
shakes = open("output.csv", "r")
for line in shakes:
if re.match("STRING", line):
print line,
How can I change this to input the strings to be searched from another file?
So far I haven't been able to.
Ubuntu Servers :: Terminal Command - Searching Given SH File For String
Mar 10, 2010I need a hand with a line of terminal commands. I need to be able to search a given .sh file in a given location for a string, and when found, add a "#" to the start of that string and save the file back to it's original location.
View 1 Replies View RelatedGeneral :: Getting Segmention Fault Error While Searching String In Csv File?
Jan 18, 2011I am using grep command to search in a particular file whose size is 11 GB and i am getting Segmentation fault error as an output. My command and output is as follows:
Code:
[sdpuser@gnnsdp40 test]$ cat new* | grep 8858406465
Segmentation fault
My linux version is as follows:
Code:
[sdpuser@gnnsdp40 test]$ uname -a Linux gnnsdp40 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
how i can parse the complete file for searching string. I have also used split command of linux which splits the file of 11 GB to 11 files of 1 GB each respectively. But still getting the same "Segmentation fault" error while using grep.
Programming :: Sed Script - Searching For Text Within File / Replace With Variable
Feb 25, 2011Code:
#!/bin/bash
VARR=`cat /proc/asound/cards | grep HDMI | cut -c 1-2`
VARX="defaults.ctl.card $VARR"
VARY="defaults.pcm.card $VARR"
FILE1="alsa"
FILE2="alsa.new"
echo $VARX
echo $VARY
sed "s/defaults.ctl.card*/'$VARX'/g" $FILE1 > $FILE2
This is what I have right now. Well, I thought I knew sed, and apparently I don't... I tried writing this for someone else, and this has given me trouble, so since the user pretty much figured it out on his own, here it goes.
Say VARR=1, so VARX and VARY contain the above text, appended by 1.
What I am trying to do is replace the text "defaults.ctl.card 0" by VARX and "defaults.pcm.card 0" by VARY. The contents of FILE1 is the file being used to search for both text fields, and FILE2 is the output file. I tried using single quotes, double quotes, and a mixture of both, and no go whatsoever. So my question... What is the proper way of searching for text within a file and replacing with a variable?
General :: Bash Script To Fgrep A Large File With List As Source For Searching?
Jan 17, 2011I need to fgrep a list of things which are in a file. The file in which I will do the SEACHING is a large text file and I need fgrep to output each item from the list as a file with the item from the list as the file name.
Its kinda like this:
./script list.txt largefile.txt
output would be
jack.txt
screen.txt
blah.txt
Ubuntu :: Searching WITHIN Doc - Xls - Ppt Files - Grep Is Unable To Locate Text INSIDE File Types
Sep 1, 2011I am on Ubuntu 11.04 and using Libre Office 3.3.2 to compose new documents and am saving them using .doc, .ppt and .xls files. (due to having to share them with others who are on Windows systems)
I have a lot of doc files and I need to search for text INSIDE these files. I am perplexed with the fact that no search tool is able to search for text INSIDE these file types. "cat" can display them of course, but grep is not able to locate text INSIDE these file types. I even tried to save a .doc file as an .odt file, but no luck. The Applications>Accessories>Search for Files does not search INSIDE doc, xls or ppt with the option "Contains the text".
General :: Searching And Replacing Strings In File With Strings In Other Files
Jul 29, 2010I want to search and replace strings in a file with strings in other files/i need to do it with big strings(string1 is big) and i want to use a txt file for this.But this code not working :
View 14 Replies View RelatedProgramming :: Convert Gigabyte To Byte?
Nov 24, 2010I'm learning C and trying to write a program to convert gigabyte into byte. It will take 50% of the value given and then convert that value into byte. But the problem is the output goes into minus / negative value. Like, if I enter 22, I get output: -2147483648.
Code:
#include <stdio.h>
#include <math.h>
main (int argc, char* argv[])
{
[Code]....
Programming :: Byte At Memory Location 45 With Immediate Value 03
Jul 10, 2011As 2.17
I want to code this:
and byte[45],03
In words, AND the byte at memory location 45 with immediate value 03. As reports "Ambiguous operand size for and". How could I code the instruction such that as understands my intention?
john: .byte 45
and byte[john],03
gives the same error.