Programming :: Make X Number Of Changes Matching Pattern With Sed?

Aug 7, 2010

i tried searching on google but found it difficult to say exactly what I was looking for.Task - Capitalise x number of letters at the start of words.eg. Original line - one.two.three.fourRevised line - One.Two.three.four (here only requiring 2 changes)Test data:

Code:
wire.in.the.blood.s04e01.ws.pdtv.xvid-river.avi
wire.in.the.blood.s04e02.ws.pdtv.xvid-river.avi

[code]...

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Programming :: Add Texts Using Sed In Matching Pattern?

Feb 3, 2011

I need to add some text using sed before and after the matching pattern. Does any one have any clue?e.g.cat /my/file | sed -e "s/first pattern/New Pattern/g" . /my/file.bakNow I need a result like New Pattern

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Programming :: Sed: Delete Last Line Matching A Pattern?

Mar 27, 2011

I have a question about sed programming, actually a one-liner for which I cannot find a solution, right now. I need to delete a line matching a specific pattern only if it is the last line. In practice, I would put together the following:

Code:
#
# This deletes the last line of a file

[code]...

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Programming :: Multiple Line Pattern Matching And Variable Extraction?

Oct 19, 2010

I have this complex log file filled with entries like

test1-G1/0/0-100-QOS-7001923-ROUTING (ClassMap)
Action: Resolved New
sysName: test1.local

[code]...

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Programming :: Inverse Regexp Matching / Developing Of An Idea 'pattern Based Filtration'?

Sep 3, 2010

I am interested in the following problem: given a string (pattern) find a regexp which match this pattern.
I will need this for a developing of an idea 'pattern based filtration'.

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General :: Listing Files Using Pattern Matching

Mar 13, 2011

I have a requirement to list files using find command My folder contains below list of files with out extention.I have a requirement to exclude only ABC.123.* type files and list others. Even though files having MNO contains this pattern i should not exclude. Even if file ends with .txt or .doc it should not be excluded. That is ABC.123.1234.txt should not be excluded.But I am not getting what is required. Can any one please let me know if I am doing wrong any where. As per my requirement I cannot use grep, -regex, or -regex attributes to find command.

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General :: Copy All Files Matching Pattern From SRC To DST

Jul 19, 2011

If I wanted to copy all *.so files from src to dst I'd do:
cp src/*.so dst
However, I want to copy all *.so files from src and it's subdirs into dst.

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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 :: File Matching Pattern On Command Line?

Sep 9, 2011

I've got files in a directory as follows:

1.png
1_thumb.png
1-1.png
1-1_thumb.png

[code]....

I want to list all the files that don't have a copy with the same filename with -1 somewhere in it. So, in the example above, the results would be 3.png.

NB: the file and its copy with "-1" in it will be the same filesize, if that helps.

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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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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 :: Matching Two Tables Of Non-matching Sizes?

Mar 2, 2011

I have two table files with x (1st column) ,y (2nd column) coordinates and intensity (3rd column). I need to match these two tables and divide the intensities at the consecutive coordinates on the 3rd column. The problem is the size of the tables are not same and I want to ignore the lines if they are not in one of the other file.

Here is Table 1:

Code:
-7.500-30.00013.006
-7.500-22.50037.952
-7.500-15.00060.962
-7.500-7.50040.922
-7.5000.00014.348
code....

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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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General :: Parse A File And Print Each Line That Ends With Matching Pattern (if The Next Line Is Blank)

Aug 2, 2010

I've written a script to parse a file and print each line that ends with matching pattern, if the next line is blank. The pattern lines are the result of md5sum $i|sed 's/path///g' so that only md5 and filename appear. Here's what I'm using.

Quote:
for fline in `sed -n '/.*.ext$/p' file1`
do
if [ "`sed -n -e '/'"$fline"'/ {n; p;}' file1`" == "" ]
then
echo ""$fline" has no info" >>file2
fi
done
[Code]....

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Programming :: Make Detect Plugged Number Of NIC's On A PC?

Jun 24, 2010

I am working on debian based OS and my query is,how to make detect the Number of NIC's plugged on a PC.
I describe it: Exact requirement would, assume, If I plug 3 NIC's for a PC,one for Internal Network,one for External Network and Other remaining one for DMZ,so I need to make an application(Firewall Kind)in such a way that,once my PC is started,it should detect how many NIC's are plugged and Whats their role played(As Mentioned above)..?
I hope u guys got a basic idea on what and how it it can be implemented..
I request to send some clues,or some related URL's/Tutorials or which part of the Linux File System needs to be edited(/etc or/proc),etc.

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Ubuntu :: Backup - Make A Bootable USB Matching Current System?

Aug 12, 2010

Here is what I would like to pursue: I would aim to create a USB drive which a system can boot from if needed. However, this system would not be the generic Lucid 10.04 iso, it would have specific packages that my current system has. Also, it would start up and run with my current system settings if possible.

I did look into Reconstructor, but it doesn't appear that that would have the capibility of changing the default settings to match my current system's settings. Also, it looked like there wasn't a way to upload a list of current packages of my system (I would have to manually select each package, taking quite a while). So is there any way to make a bootable USB matching my current system? Or is reconstructor the closest thing to that kind of customiz-ability?

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Networking :: Error - Man/Makefile.am:11: `%'-style Pattern Rules Are A GNU Make Extension

Jun 24, 2011

I am facing an error when I run the following command.

Command: autoreconf -i
Error: man/Makefile.am:11: `%'-style pattern rules are a GNU make extension

[code]....

I'm using Fedora Core 11 on Dell Machine Precision 360

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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 :: ! For Not Matching Bash Regex?

Jan 13, 2011

In a bash-script, only the case if a regular expression does not match is relevant.herefore I used the exclamation mark !. But where to place it?

These two work fine, but are they equivalent?
Code: if ! [[ $abc =~ $pattern ]]; then or
Code: if [[ ! $abc =~ $pattern ]]; then Where is the ! placed more correct?

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Programming :: Awk Character Position Matching?

Apr 22, 2011

I am trying to check if the 9th character in a file on each line is a v and if so, then print the first word. I've tried a number of variations and am stuck !If it's possible to also check if character position 1 begins with a s in the same awk, that would make it cleaner instead of using egrep.

egrep '^s' file | nawk '{virtual=substr($0,9,1); if ($virtual=="v") {printf "%s", $1}}'
nawk: illegal field $(e)
input record number 1
source line number 1

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Programming :: Matching Numbers With Nawk

May 11, 2011

I am struggling to understand why nawk matches values that are either 1 or 2 digits in length, but not 100 (3 digits).

Am I missing something obvious ? Should I use substr to remove the % ?

I am sure it's something to do with character and string matching behaviour with nawk.

Code:

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Programming :: SQL Substring Matching A Character?

Apr 7, 2011

I have the following string:"My dog spot(page 1)". I want just "My dog spot". How do I do this in SQL Server?

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Programming :: How To Do Fuzzy Matching On A MySQL Field

Feb 18, 2011

If I have a MySQL field called, say, "Occupation", which contains "Java Programmer" in it, I would like it to come up when I search for "Java", so that I can get to the other fields in the table.
How do I do this?

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Programming :: Perl Regex Matching HTML?

Mar 19, 2010

I'm trying to find out how to extract the string between the 2 <title> tags: <title>this is what i want</title>.I found lots of results but nothing I've tried works.. EG:$page =~ m/<title>($.)</title>/gism;

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Programming :: Remove Exact Matching Word Using Sed?

Aug 18, 2009

I have a file which has the words "splashimage and "splash". I would like to remove the word only "splash" from everywhere.

Using the following command code...

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Programming :: Rename Files Matching A List?

Jul 12, 2009

Is there a way, preferably in python or BASH, to rename files from a list? for instance, track1.mp3, track2.mp3 should be renamed to the names stored in a file listing song names. I have tried to loop a variable through directory listing and renamed them, only to find that filenames with spaces can't be assigned to a variable as a whole. To solve the problem above, I have tried the read command in BASH, which enables the program reading line by line from a list. However, It was failed to pipe the results from directory listing to the read command.

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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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Programming :: AWK (or TCL/TK): Matching Rows And Columns Between Multiple Files?

May 26, 2011

I've been hitting my head against a wall for awhile with this one:As the last part of some data analysis I performing I would to construct a matrix from a series of different files. These files have the format:

file 1 file 2 file 3
AAAAA .1 AAAAA .1 BBBBB .1
BBBBB .2 BBBBB .1 CCCCC .9

[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 :: Delete Line Containing A Pattern?

Apr 1, 2011

if the given pattern exists in the file with the very next line starting and endingwith the same pattern , delete the line that starts and ends with the given pattern.So upon running on this file

hai people<PATTERN> we had
<PATTERN>a lot of fun<PATTERN>
writing scripts

[code]....

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