Debian :: Append File Content In Another File When Pattern Matches

Feb 5, 2010

I have a file, say abc.txt, whit some text lines.The I have a second file, say 123.txt where at a certain point one can read "WORD".I would like to append the whole content of abc.txt (as it appears in abc.txt) in the line after "WORD".

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Programming :: Sed -n '/pattern/{n;p;}' Is Missing Matches In File?

Jun 16, 2011

I have an interesting problem, sed '/pattern/{n;p;}' file, doesn't seem to be catching all of the matches in my file. As an example of this see below.test:

Turn
Turn
Turn

[code]....

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General :: Sed - Append Four Commas ',,,,' At The End Of Lines Containing The Pattern 'Response' In A Text File

Nov 5, 2010

Using sed, I am trying to append four commas ',,,,' at the end of lines containing the pattern 'Response' in a text file with lines such as these:

6,Pulse,50,254968,14886,NA,,,,
7,Picture,8,265157,0,1,15045,2,0,15000
7,Response,1,271553,6396,1
7,Pulse,50,274969,9812,NA,,,,
8,Picture,1,290232,0,1,15045,2,0,15000
8,Pulse,50,294969,4737,NA,,,,
[Code].....

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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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Ubuntu :: Shell, Auto Append Number To File And Read From External File?

Oct 31, 2010

Code:
cat ${SOURCE}/{start,universal,index,end}.txt > ${SERVER}/index.html
cat ${SOURCE}/{start,universal,02042010,end}.txt > ${SERVER}/02042010.html

[code]....

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Debian :: Create File With Repeating Pattern?

Jul 22, 2010

I want to create some files of a specific size containing a repeating pattern. I did some research and found that I can create a file and fill it with (fairly) random data by using dd like so: dd if=/dev/urandom of=myfile.dat bs=$(( 1024 * 1024 )) count=100 (Creates a 100 MB file.) I found that here: Quickly creating large files.

Rather than fill a file with random data, I'd like to use these patterns: 0xaa, 0x55, 0xff, and 0x00 (one per file). Is there a simple way to accomplish this?

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Programming :: Append Contents Of One File To Another Existing File?

Nov 17, 2008

I have two files list1.cfg and list2.cfg both files contains differentrecords details like

List1.cfg
NAME1:25:C:NAME LINE1:
NAME2:25:C:NAME LINE2:
CITY:25:C:City:

[code]....

Now I want to append contents list2.cfg to list1.cfg(It ispposible using cat list2.cfg >>list1.cfg) but I want to check if content of (record) in list2.cfg is present in list1.cfg then dont append it otherwise append it.

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Ubuntu :: Egrep Command To Return Matches For A Group Rather Than The Whole Pattern Itself?

Jan 17, 2011

To put it simply I want the egrep command to return matches for a group rather than the whole pattern itself.For example:

Code:
egrep "reals([0-9]+?m[0-9]+?.[0-9]{3}s)" tmp
returns
"real 0m1.001s"

But I want it to return just "0m1.001s", the portion is the group. I can just apply egrep to whatever the first command returns but is there an easier way to do it?

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Programming :: Shell Script To Delete Part Text Of A Line If Pattern Matches?

Apr 12, 2010

I am trying to create a shell script, on taking a input file as parameter, which need to do 3 things

1) create a copy of existing file.

2) add a new line to the copied file.

3) strip off all the absolute paths inside the copied file

The first 2 points are straight forward. but i am finding it difficult to acheive the 3rd point. myself not very good with awk and sed. but gave it a shot in vain. For example, the input script consists of below,

PROGRAM=`/usr/bin/basename $0`
HOST=`/usr/bin/uname -n`
echo Start $PROGRAM `/usr/bin/date` |
/usr/bin/tee -a $LOG

The output of the script should look like,

PROGRAM=`basename $0`
HOST=`uname -n`
echo Start $PROGRAM `date` |
tee -a $LOG

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General :: Find File With Dir/file Pattern?

Jul 26, 2011

i'm just curious if i can search for the dir/file pattern in the single "find" command?
here is an example:

dir1/dir2/dir3/file.txt
dirXX/dirYY/dir2/dir3/file.txt
dir1/dir4/dir3/file.txt

i want to search for the pattern "dir2/dir3/file.txt"

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Software :: Replace Newline Pattern In File By Other Newline Pattern In A Shell Script?

Nov 22, 2010

I have several (vhdl) files containing a pattern with newline characters that I need to replace by another pattern that also contains newline characters.

I start with something like:

Code:

I want to replace it by something like:

Code:

(I need to paste some lines)

As I need to do this (very) often I want to use a shell script.

I tried:

1.

Code:

result:

Code:

2.

Code:

result:

File remains unchanged

3.

Code:

result:

Code:

4.

Code:

result:

Displays the unchanged testfile

How I can automate the pattern replacement?

Code:

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General :: Searching Content Of The File Using File Browser Nautilus?

May 27, 2011

I'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?

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Programming :: Sed - Save Output To File With Filename From Content Of Another File?

Feb 28, 2011

My employer issues pdf files with everyones work schedules. I copy the content and save it as plain text in a file called unformatted (hope to be able to automate this step someday). Im working on a SED script that reduces unformatted to only display what I want to see and saves the result in a file Ive named formatted. After that I have to manually copy formatted and save it with that days date as a filename e.g. 2011-02-25 or whatever day is scheduled in the pdf, for use on a mobile device (Nokia N900). I noticed that the date occurs on certain lines in the file so I added a line like:

sed -n 's/^Date: (201[1-9])/([0-1][0-9])/([0-3][0-9]).*/1-2-3/p' < unformatted >theDate
That creates a file theDate with the date in it that I wish to use as the filename for this particular instance. So I would like to skip the file formatted all together and have the sed- script write to a new file using the content of the Date as a filename, but how do I make that happen? And of course it would be more elegant if I could skip the intermediate theDate file as well.

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General :: Dividing Content Of One File By Content Of Another?

Apr 12, 2011

If you have the value 100 in File1 and the value 5 in File2, how do you write a script to divide the 100 in File1 by the 5 in File2 in Linux Bash Shell?The operating system I am using is Ubuntu 10 and object is to write a script to accomplish this task.

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Programming :: Copy One File Content To Multiple File

May 28, 2010

I wanted to copy one file to multiple new files. I have an idea to write a script and do the operation. But here i m looking for any particular command to do this operation.

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General :: Append File Name

Oct 7, 2009

I know similar questions have been asked before but I cannot seem to get it to work.I have a file file.something.nhMMYY that i need to ftp (MMYY being Month and Year)I want to add something into the script to auto-magically insert the MMYY.

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Security :: Is There Way To Specify Append Only Permissions For File?

Sep 12, 2009

Is there a way to specify append only permissions for a file?

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Software :: Append Text To File

Dec 2, 2009

I want to append some text to the file, files are mostly big, more then 100 mb. I found the cat command, so I can create a new txt file and then append it to the original file with it. Two questions:

1. Can I append text to the file instead of creating the new file and then appending it to the original file? eg:
Code:
cat file.avi "some text" > newfile.avi
2. cat takes several seconds to execute the merging files together, it seems that it is reading the original file first, is there a way skip the reading and just append the file?

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Ubuntu :: Permission Denied When Trying To Append To File / Fix It?

Feb 8, 2011

Sudo echo fuse >> /etc/modules

Any idea why that'd yield a "bash: /etc/modules: Permission denied" error? Here's what "stat /etc/modules" says code...

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General :: Append # Begining File In Perl

Nov 28, 2010

Can you please let me know how can i append # in the begining of each line Based on a a search string lile /^8282##8282/gc

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Programming :: How To Append Text To Second Line Of File?

Nov 6, 2010

Say I have a text file like:
Code:
1
3
4
How would I use ksh to put the number '2' into the second line of that file?Okay it's not bash, it's ksh because this computer is OpenBSD

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Programming :: Append Text To The Beginning Of A File?

Jan 14, 2010

I am trying to append text to the beginning of a file. This is what I have so far.

Code:
date_default_timezone_set('America/Chicago');
$date=date("m-d-Y g:i:s a");

[code]....

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Programming :: Unable To Append To A File Through Perl/CGI

Apr 6, 2010

where I'm trying to demonstrate the file locking concept through Perl/CGI.Here is the script which I tried.

Code:
#!/usr/bin/perl -w
use strict;
use warnings;
print "Content-type: text/html

[Code].....

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OpenSUSE :: Append Text To An Entry In An Existing File?

Aug 30, 2010

How do you append text to an entry in an existing file? For example, lets say I have a file called "env.logon" in /home/myself/bin that contains the following text:

PATH=/bin:/sbin If I wanted to add, via command line, ":/usr/bin:/usr/sbin" to the PATH= and I
used the "echo" command (echo "PATH=:/usr/bin:/usr/sbin) it would create a second entry and my file would look like:

PATH=/bin:/sbin
PATH=:/usr/bin:/usr/sbin
What I want is for it to look like:
PATH=/bin:/sbin:/usr/bin:/usr/sbin

Is there a way to get this result via command line?

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Ubuntu :: Append Data To A File Where Immutable Flag Is Set?

Mar 10, 2010

I want to append data to a file where immutable flag is set..So i have tried this command chattr +a file_name to append data..But i am unable to append the data..

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Programming :: [Java] Append Something To Each Line In A Text File?

Apr 15, 2009

I am thinking of appending something to each line in a text file with Java. I prefer not write a new file with content appended from the old one.That 'something' would probably be Time Stamp when the file is created (which is same for each line).I am not sure Java provide some easy way for it or not

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Programming :: Append A Block Of Text Into A Particular Section Of A File?

Mar 16, 2010

So I have file which looks something like this:

cat .opera/operaprefs.ini
Code:
[User Prefs]
Language Files Directory=

[code]...

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General :: Read From Input File And Append To Multiple Files?

Nov 22, 2010

I wanted to be as clear as possible. I have to add hundreds of new servers to hundreds of configuration files in Nagios. Here is a sample structure:

servers.txt has:
SERVER3
SERVER4

[code]....

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Server :: Append A Set (or Sets) Of Data To A File(or Files) On Remote Hosts?

Dec 26, 2009

If I need to append a set (or sets) of data to a file(or files) on remote hosts what is the best mechanism by which to do that? My first thought was ssh but the command syntax to append to a remote file isn't clear to me. Can anyone point me in the right direction here?

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General :: Replace A Pattern In A File?

Jun 11, 2010

I want to replace a pattern in a file.The file format is given below.

111111
path=/home/fun/
222222
path=/home/fun/

[Code]....

I want to replace "path=/home/fun" with another pattern, but only under "111111", all the others should be the same.

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