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 :: 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 :: 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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Ubuntu :: Get Texts And Image Of Texts On Ubuntu Terminal Like Mint?

Jun 1, 2010

In linux mint every time a new text appears with new terminal tab or new terminalwindow.How to do this on ubuntu terminal?

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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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Programming :: Split A Pattern In Perl?

May 17, 2010

I am trying to split a pattern in perl and so far I cannot get it to work. I have a pattern that looks like this:

76|2455311|2455312|00:00:00|00:00:00|Once|0|Donkey | |

I always need to print out the 8th field. So in this case donkey. Here is what I have so far:

Code:
#!/usr/bin/perl
use strict;
use warnings;

[Code].....

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Programming :: Setting IFS To Ignore Pattern?

Mar 11, 2010

I'm working on a backup script which takes the following input:

Code:
RevBackup.sh <options> <source> <target>

The problem I'm having is that the source and target might contain spaces in the path. ie. /home/eRJe/My Documents

I would like the script to ignore " " (backslash-space) as being a delimiter. how could I do this without stopping a normal space from being a delimiter?

I could do this with IFS. But so far I have only found info about setting a delimiter and not to "ignore" one

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Programming :: Perl Only Matching Single-character Regex Patterns?

Jan 20, 2009

I'm having a small issue with regex matching in Perl. I'm pretty certain it's a simple fix, but it all looks correct to me...

If I run the following:

Code:

It prints out all the lines containing a 'P', as one would expect. But when the regex is

Code:

I get zero lines printed. It seems to match only single-character patterns.

The file I'm reading is: (It has the same effect whether I leave it with Windows linebreaks or convert them to unix).

Code:

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