General :: Grep Pattern Of Root Directory?

Mar 5, 2011

Want to grep pattern of root dir. (/). Staying in current directory. But I don't want to use the below code:
cd /
grep m *

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General :: Grep Or Sed To Delete Matching Pattern?

Jul 7, 2011

How can I use grep -Ev "pattern" not only to delete the matching "pattern" but to edit and save the file permanently as well

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General :: Using Grep With Pattern File And PCRE

Sep 25, 2010

I would like to write a newline delimeted rules file using PCREs for use with the grep command. Grep has the option -f to obtain the search pattern from a file, and option -P to search using PCREs. However, these two options do not work together. The -f option only seems to work with fixed string rules.A friend previously helped me get around this limitation somehow, but I can't remember how he did it. I also would like the ability to add comments at the end of each rule in the file.

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General :: How To Make Grep To Search A Pattern In Only Specific File Type?

Mar 6, 2010

To search a string pattern in all files in a directory and subdirectories, I am using;

Code:
grep -R "myclass::my-func(" mydirectory/
Now I want grep, to search in only specific file types say *.cc. Please help me. I have read manual of grep, but could not deduce any hint.
Best Regards.

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Programming :: How To Grep Pattern Which Is Split In 2 Lines?

Dec 9, 2010

I need to grep a pattern which can be present in one line or could be split in 2 lines.Normal grep wont work in this case. Can anyone please help on this?There are 100's of files in which i need to search for this pattern so time is also a constrain.

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Programming :: Grep Until Certain Character Or Pattern Appears

Jun 25, 2010

I have the following command that greps "/etc/cron.allow" and displays the following 9 lines of $file grep -A 9 "/etc/cron.allow" $file On the other hand I would like to grep a file for a certain text display the next couple of lines and stop when i hit a specified word or blank or pattern.Basically I would like my grep to end when the shell hits a blank, certain key word or pattern specified in command.

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Programming :: Searching Pattern In Tab Delimited File Using Grep

Mar 4, 2010

Suppose 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"??

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General :: Searching A Directory And Pulling Out Filenames With A Certain Pattern?

May 17, 2010

I would like to search a specific directory and pull out filenames that have this pattern: "_bsc_" Then I want to do some processing and move the file to another directory

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General :: Copy A File With Certain Name Pattern For Which Exact Place In Complex Directory-structure Unknown?

Sep 19, 2011

I want to copy all files with the name XYZ* into one folder. The problem is that the files are in different subfolders and that not even the depth of the folder structure is the same for all files. Luckily, at least each file has a unique name.

Of course, I thought about the cp command but I guess the depth of the folder structure needs to be the same for this to work.

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General :: Ls: Cannot Access Grep: No Such File Or Directory

Mar 16, 2010

I ran into a bit of trouble making a bash script. (Desktop is a directory, and I try to get it's modification date)

Code:

lamp:~# cmd='ls -l Desktop | grep -o "....-..-.. ..:.."'
lamp:~# $cmd
ls: cannot access |: No such file or directory
ls: cannot access grep: No such file or directory

[code]....

When I type in the command directly, without using an inbetween variable, it works fine.

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General :: Add (not Replacing) A Pattern Match With A Similar Pattern?

Aug 30, 2009

I'm writing a bash script to search html files, and when I find any occurrence of an img src tag like this:

<img src="123-picture-normal.jpg" alt="some random user entered text" border="0">

I want to add a second line below it that looks like:
<img src="123-picture-thumbnail.jpg" alt="some random user entered text" border="0">

All I need to do is duplicate the line but replace "normal" with "thumbnail"

Each file can have multiple img src tags with different numbered jpgs.

I have a feeling this is a job for sed, but I'm struggling with it. Any ideas?

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General :: Find Pattern After Specific Pattern

Oct 11, 2010

I want to go through a log file and find pattern1 and then a pattern2 only after pattern 1.So for example I want to know howManyRecords was in 13:30.I figured I grep for "start time for the job" and then only after that (and before the next occurence of that) grep for "howManyRecords". Is this a sane way?

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General :: Installing As Non-root In A Root Owned Directory

Mar 8, 2011

I have a machine which has only /opt with some decent amount of space where I can install a software. /opt belongs to root:root. The software I want to install cannot be installed as root user.

So lets say I create a directory called /opt/install1 and then chown -R install1 to belong to user1. And now I install the software under /opt/install1 with user as user1.

Is this a best practice violation? There could potentially be just /opt/install1 belong to user1 and in future everything else created under /opt belonging to root..

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Programming :: Search A File For A Particular Pattern And If Pattern Found Replace The Line With New Text?

Feb 24, 2010

I want to search a file for a particular pattern and if pattern found replace the line with new text. i am using awk 'match($0,"pattern") != 0 {print $0} ' filename to check if the pattern exists.how do i get the line number of the pattern and delete that line and replace the line with my new text?

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Programming :: If Statement Pattern Search / End Of Pattern Special Character?

Apr 29, 2010

I have to enhance the behaviour of a backup script written in perl. I don't need to change it, what I need to do is to create a bash script that does some checks like file name and file size, execute the backup script then check if the backup files match the original files.Here's how I try to do it:

- read the files from the original files folder
- store them in an array
- search in the array the files that have a specific file extension
- store the file names that match the search pattern (I know the backup script skips some files so I can hardcode the search pattern)
- run the backup script
- read the files from the backup folder
- store them in an array
- compare the original files name and size stored in an array with those from the backup folder
- send a report email

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Software :: YUM Install Root - Grep And Bash

Jan 22, 2011

Code:
[liveuser@localhost hd1]$ cat /etc/yum.conf
[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
installonly_limit=3
color=never
# installroot=/home/liveuser/hd1

# metadata_expire=90m
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d
[liveuser@localhost hd1]$ yum list installed bash grep
Loaded plugins: langpacks, presto, refresh-packagekit
Adding en_US to language list
Installed Packages
bash.x86_64 4.1.7-3.fc14 @fedora/$releasever
grep.x86_64 2.7-1.fc14.1 @fedora/$releasever
[liveuser@localhost hd1]$ sudo vi /etc/yum.conf
[liveuser@localhost hd1]$ cat /etc/yum.conf
[main]

cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
installonly_limit=3
color=never
installroot=/home/liveuser/hd1

# metadata_expire=90m
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d
[liveuser@localhost hd1]$ yum list installed bash grep
Loaded plugins: langpacks, presto, refresh-packagekit
Adding en_US to language list
Error: No matching Packages to list

Basically when I comment out installroot it says grep and bash are installed but when I change installroot it says grep and bash are not installed?

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Fedora :: Configure Grep To Search Recursively Through All Files In A Directory?

Oct 1, 2010

somewhere lurking is a file containing the default print resolution, which is not being overwritten by printer settings or cups management. I've asked on the cup forum and nothing successful.

So here's the question:

How can I configure grep to search recursively through all files in a directory, or if need be starting from root to find the pattern "2880" I've looked in the man page for grep and I can't see how to do it, is grep the right tool to use for this ?

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Software :: Grep Recursive Search Directory Depth Option ?

Feb 28, 2011

I know grep can search recursively (ie through all subdirectories to the bottom of the directory tree), but is it possible to ask grep to only search say, 3 levels down? That means the current directory, any directories in the current directory, and within any directories within those?

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General :: How Does Kernel Know The Root Directory

Mar 26, 2010

how the kernel knows the root directory. For example, in grub menu.lst file we specify root=/dev/hda1. This tells the kernel to find mount the root directory from /dev/hda1. But to read /dev/had1 it should first know where is '/' . I couldn't understand how this is being done.

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General :: How Does Kernel Know The Root Directory?

Mar 25, 2010

How the kernel knows the root directory. For example, in grub menu.lst file we specify root=/dev/hda1. This tells the kernel to find mount the root directory from /dev/hda1. But to read /dev/had1 it should first know where is '/' . I couldn't understand how this is being done.

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General :: No Space In Root Directory ?

Nov 25, 2010

I am using fedora 12. i got "no space in root directory" warning from the system..when i went through it, i found many of the space has been occupied by /var/log/httpd/error-log file. so i just deleted the file..but when i check the space with "df -h" command.it shows 0% availability..the same problem occured before...but it solved when i restarted the system..but how to regain the space wihtout restarting the system?

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General :: Root Directory 100 Percent Used?

Dec 31, 2010

I have assigned 4G for my "/" directory, on slacware 10.2, and have not installed the GUI either. I am not sure what files to look for that have been growing over time that has completely depleted my space. Think it would be log files, but don't know where to find them.

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General :: Parent Directory For Root In F13?

Jul 28, 2010

I am using fedora 13. When I list the root directory with the command: 'ls -la'. I see the parent directory symbol as '..' So, which is the parent directory for root directory?

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Fedora :: Bash Function Alias To Recursively Grep Current Directory?

Feb 14, 2011

This should be a simple thing to accomplish, but I can seem to figure it out. Essentially, I want to have a bash alias or function that will let me recursively grep the current directory. A while back I added this to my .bashrc:

Code:

alias rg="grep -r --exclude=*/.svn/* --exclude=*.swp"

This works fine, (and also ignores any svn and vim swp files), and I can call it like:

Code:

rg foo *

However, 99.999% of the time, I am only interested in searching in the current directory, so the "*" is a bit redundant. Also, I would say 5-10% of the time, I am typing faster than thinking and forget the "*", so grep just sits there trying to read from stdin. It's a pretty minor thing, but ideally I'd like to be able to just type:

Code:

rg foo

I've tried creating a function to handle this:

Code:

function rg(){
grep -r --exclude=*/.svn/* --exclude=*.swp $1 *
}

but it behaves exactly the same as the alias above. escaping the "*" with 's doesn't work, and neither does trying `pwd` (or even a hard-coded path) in its place.

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General :: I/O Error - Cannot Remove Directory As Root

Feb 21, 2010

ubuntu@ubuntu:/usr/lib/locale$ sudo rm -R nl_NL.utf8 rm: cannot remove directory `nl_NL.utf8': Input/output error I'm having problems deleting a seemingly corrupted directory to allow for a reconfiguration of this locale, but the OS doesn't let me do it. Why?

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General :: Change The Root Directory For A User?

Oct 5, 2010

For a user on a Linux host, I need to make everything inaccessible besides his home directory. I have heard that this is usually done by changing the root directory for the user (and setting it to the user's home directory), however I couldn't find the way to do it.

I thought about the chroot command, but it seems it just runs the specified command, considering the specified directory as the root directory. So it seems chroot is not what i need. So my question is: what is the command which changes the user's root directory?

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General :: Giving Rm Root Privilege For A Particular Directory

Jul 7, 2009

I want to give root privilege to the command rm for only a directory Dir inside /local/home. How I can do that?

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General :: Logged In As Root And Used Rm -r On A File Directory

Jul 22, 2011

I just logged in as root and used rm -r on a file directory, but is this the same thing as deleting it?

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General :: Root Directory Changed By Using Command?

Oct 24, 2010

I am using fedora 13. If is use the command "cd //". It changes to root directory. How is it? What "//" denote?

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General :: What's The Root Directory On Multi-OS System

Jun 15, 2010

The root filesystem is the filesystem that is contained on the same partition on which the root directory is located, and it is the filesystem on which all the other filesystems are mounted.

In a multi-OS desktop, having Windows, Ubuntu and Fedora, what is the root filesystem as the root directory is located on at least 2 of the OS.

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