Programming :: Remove Specific Lines From File

Jan 21, 2011

I'm trying to come up with ideas for a simple way to strip a specific "entry" from a text file.I know tools like sed and perl can remove specific lines from a file but I haven't been able to come up with an elegant way to do my group of lines.In my file, the first "Location" line and the "SVNPath" line should be unique every time... but are they enough to strip out the whole set of the group plus the trailing one line of white space separating each group? Add to this, my file will grow as new entries are added (always appended to the end) but new entries will have the same formatting.

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Programming :: Reading Specific Lines From A File?

Sep 10, 2009

To save on the writing of WAY to many files with very little in them, I want to put it all in one file and read a specific few lines. There will be six variables to be read at a time. Format is as such:

//Set 1
string name
5
12

[code]....

From name to 5th number is a set. The name will be of different lengths for each set. This will be a big file of probably 40+ sets. My problem lies in reading one and only one set be it set 5 or set 34. It needs to be done in C++.

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Programming :: Extract Specific Lines From A Flat File?

Mar 10, 2011

I'm trying to extract specific lines from a flat file. I need lines that fall within a range of coordinates. The -F can be either ! or = If the line is in this set range I need all of the data on that line. ranges lat 36 to 39 and longitude -74 to -84

awk -F '=' '{lat=substr($2,1,2); lon=substr($2,10,3); (lat >36 && lat <39) && (lon >-74 && lon <-84); print lat"--"lon}' < net.log

example line from the flat file
K4MQF-3>APN383,VA2-2,qAR,N3HF-5:!3818.65NS07800.17W#PHG77306/W3,VA3/Clarke Mnt

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Programming :: Deleting Lines From A File With Specific Pattern Using AWK?

Jun 6, 2010

I have a file which contains milion of records. It contains 12 columns seperated by "||" (delimeter).

First two fields contain first name and last name of a person. Now my requirement is to delete all those records from this file for which:

First two fields does not contain any alphabet.

For e.g i have below mentioned records in file:

gaurav||gandhi||123||456||789
#a%bcd||123abc||89|90||91
12345||@@@||89||123||234
***||!!!!||98||76||90

Now, last two lines should be removed from this file since first two fields does not contain any alphabet for these two records.

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Programming :: Remove Many Lines Based On Content Of Other File

Jun 21, 2011

I a csv-file (A.csv) with a total of 4.600.000 lines. Thats to many and only a few is necessary. I have a txt-file with 150 lines (X.txt) (all lines is dataset from a mainframe and looks like abc.def.123.456. How do I remove lines from A.csv where none of the dataset from x.txt is present?

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Programming :: Remove Lines And Parts Of Lines From Python Strings?

Nov 24, 2009

How do you remove parts of strings using python? Such as, if I have something like:

Code:
erme1 sdifskenklsd
erme2 sdfjksliel

[code]....

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Programming :: Remove Lines In A Text File Based On Another Text File?

Jan 28, 2009

I have a text file called file1.txt containing many lines eg.

line1
line2
line3
line4
line5
line6

Then i have another text file called file2.txt contains

3
5
6

Is there a command to remove the lines in file1.txt based on the keywords in file2.txt? note: It should remove line3,line5,line6 based on 3,5,6

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Programming :: Script To Remove Lines In A File With More Than "x" Instances Of Any Character ?

Oct 4, 2010

I'm looking for a script (bash, python, perl etc) or even a one liner (sed, awk etc) that can take a set of files and remove any line that has more than "x" instances of any character (case sensitive). I have been doing a lot of searching and can only come up with examples of how to remove blank lines, lines that start with a certain character or lines that contain a certain string. This will be used on a system running a Kubuntu derivative.

As a very poor and basic example, I would like to take files that contain lines like:

Code:

And end up with the files only containing the lines:

Code:

If I tell the script that 2 is the maximun number of times any character can appear in any line.

I know this must be possible, but for the life of me I cannot find even an example that will lead me in the right direction or better yet a piece of code I can use.

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Programming :: Awk - Summing Over Specific Lines?

Mar 31, 2011

I'm struggling myself with this problem: I have a file which contains a single column of data

2
.
.
.
45

[code]...

Is there a way to do it with awk?

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Programming :: Replace Pattern In Specific Lines And Column With AWK?

Apr 24, 2010

Im tryng to replace in specific column and line number within a file where its 3erd column contain the same string in all lines.

[code]....

My goal is to replace only first and last ocurrences of "Normal player", with the following desired output:

[code]....

Im not sure how to use the "IF" and "AND" conditions together. I�ve tryed with the code below, but the script replaces the string for every line.

[code]....

how to replace values for specific column in first and last lines within same AWK script, without taking reference data in other columns?

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General :: Show Specific Lines In A Text File?

Feb 3, 2011

I have created a text file in Linux, and I only want to show certain users. Here is my text file:

usr user tty Limbo?
11 12:06:13 APW no
12 12:06:13 APW no

[code]...

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Software :: Printing Specific Lines Of File Using Script

May 19, 2009

I have text file with say 1000 lines.And I want to display lines numbered 100, 203 and 297 using a script/ command.How can I do this ?I can print a particular line using:sed -n '100p' file1 (where file1 is input file).

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Programming :: Bash Script To Count Number Of Lines With A Specific Property7?

Aug 11, 2010

I would like to parse an input file in which there are two columns per each row. We want to see how many lines are duplicated where we define duplicate to be having the same second field and different first field. For instance if the input file looks like the following:

79874 13131
79873 12309
79820 13131

[code]...

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Programming :: Substitute Few Words + Change All The Lines Starting With A Specific Word + Put Blank?

Jan 17, 2009

I have an old-address-list file which is having around 1500 entries. I need to convert this addresses in to a specific format.

The old-address-list file>
# cat old-address-list-file
dn: CN=Muhammad Hadhi K.M,OU=IT Dept,OU=Example Company H.O,DC=example,DC=com
cn: Muhammad Hadhi K.M

[code]....

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Programming :: Remove All Lines Containing 'A,,,,,,?

Nov 3, 2010

How can I remove all lines which contain A,,,,,, I tried the following sed statements but no luck.

Code:

sed "/A,,,,,,/d file"
sed "/A,,,,,,/d file"

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Programming :: Remove All Lines Containing Extended Characters

Nov 7, 2010

I am using 'sed -e /foo/d' to match lines which I want to delete from a file. I discovered I have some lines which contain random (extended?) characters like 'ủ' which I would also like to delete. The lines in the file should only contain alpha numeric characters.

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Programming :: Remove Extra New Lines (BASH)

Jul 15, 2010

I'm trying to search through some pdf files and I'm doing so by converting them to text files using pdftotext which is fine but I'm trying to get the number of occurrences in a paragraph of different words and it's adding a new line character at what it thinks is the right hand margin. I'm trying to remove all these singe new line characters but keep the doubles and I can't seem to work it out. i.e.

This is some text that has been broken.
Another paragraph.
becomes
This is some text that has been broken.
Another paragraph

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General :: Copy Lines Starting And Ending With Specific Pattern From Multiple Files To A File?

Jul 27, 2011

A function by name abc is called in many files. I want to copy all the lines with the function call to an output file.A simple grep on function name doesn't help me as the function call is spanning across multiple lines as follows:

abc(parameter1,
parameter2,
parameter3);

So I want to copy all the three lines (till semicolon) to the output file.The problem is because there are more than 200 calls for the same function and I cannot do it manually

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Programming :: Remove Duplicate Lines From Shell Script

Apr 8, 2010

I have a file with semi duplicate lines, like:
abc 12 32
agsi 82
sha 26
abc 1
iaij
agsi 3

Now I want to edit my file and make it:
abc 12 32
agsi 82
sha 26
iaij
i.e. remove second occurrence of line when 1st column is abc or agsi.

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General :: Remove All Lines In A File Containing Sameword?

Aug 6, 2010

When i want to remove particular lines containing a specific word in from entire document at a time,i am using the following command.

awk '$columnno !~/specificword/' inputfile > outputfile

But here, coulmn no is my problem, because iam having this in different columns. So i need a solution for it.

How to write such removal command without mentioning column no. , ie irrespective of column no, it has to remove all lines having that specific word.

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Software :: Check The Contents Of A Text File For A Specific String And Remove It From The File From The Command Prompt?

Oct 14, 2010

I want to be able to check the contents of a text file for a specific string and remove it from the file from the command prompt. I would basically be searching through a number of files and if a specific string is found I would like it removed automatically. pretty much a find and replace, were the replace is nothing. any one got any ideas on how you would do this. I already have the search part sorted just need to be able to remove the string I don't want from the multiple files.

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Ubuntu :: Python : Remove Some Lines From A Text File?

Sep 6, 2010

I am creating my own address book Python program and I want to create a nction that removes some specified entries. The code looks like this now.

Code:
def remove():
delentry= raw_input('Enter the entry name to delete: ')

[code]...

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Ubuntu :: Remove Duplicate Lines From A Text File?

Dec 16, 2010

Contained within each of these 67 text files is about 1 million urls. Yes. I have 67 text files that contain 1 million lines of urls each. I am sure I am swimming in duplicates. I tried opening one text file and clicking sort ----->remove duplicates. Now Gedit is not responding my processor is maxed out to 100% and I think I am finally ready to delve into some command line code. Can anyone give me idiot proof instructions on how to sort the duplicates out of each one of these 67 text files? How about no duplicates across all 67?

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General :: Commands To Remove Particular Few Lines In History File?

Jun 16, 2010

Is there any commands or scripts to remove only selected line in the history file.

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General :: Remove Lone Lines From A Text File?

Jul 6, 2011

anyone has ideas how to remove lone lines from a text file?

If I have a file that is like this:
-----------------------------------
line 1

[code]...

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Programming :: String Editing: Remove Lines Consisting Of A Single Character?

Jul 16, 2010

I have a large text file that's formatted sort of like this:

Code:
foo bar
blah

[code]...

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Ubuntu :: Remove Duplicate Lines In Plain Text File?

Apr 14, 2010

i have a big file of random numbers i generated at some point in time, after working with it with different things(how fun that was)... i want to remove duplicate lines and i'm not sure i'm doing this right

heres the command

Code:
sort random.txt | uniq -u > rand-shorter.txt

the file is pretty big, everything on a new line. i found the command on a web site so i'm sure its correct(bit of a command line in linux newbie)

can anyone confirm if this will remove lines duplicate lines (keeping one copy) and dump what is left in a file named rand-shorter.txt?

EDIT: i think its actually working, just taking a reallllly long time (on an old pen 4 from 2000)

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Programming :: Bash Script To Find And Remove Similar Lines From Multiple Files?

Jun 5, 2009

I want to remove duplicate or multiple similar lines from multiple files. I.e. if I have four files file1.txt file2.txt file3.txt and file4.txt and would like to find and remove similar lines from all these files keeping only one line from these similar lines. I only that uniq can be used to remove similar lines from a sorted file.

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General :: Remove Lines From A Syslog Text File That Have Duplicate Strings

Mar 17, 2011

Trying to remove lines from a syslog text file that have duplicate strings

Mar 10 06:51:11[http-8080-1] INFO com.MYCOMPANY.webservices.userservice.web.UserServiceController [u:2533274802474744|360] Authorize [platformI$tformIdAndOs=2533274802474744|360, userRegion=America|360]

then a few lines down

Mar 10 06:52:03 [http-8080-1] INFO com.MYCOMPANY.webservices.userservice.web.UserServiceController [u:2533274802474744|360] Authorize [platformI$tformIdAndOs=2533274802474744|360, userRegion=America|360

got the same thing in terms of a u: number but the issue is I need to remove duplicates and just leave one and the file has multiple duplicates of different u: numbers and it's 14,000 lines long. can anyone tell me if I can use awk? sed? or sort for something like this to? removing lines that have a certain string in there that's a duplicate.

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Programming :: Bash Command To Remove All Files Within A Specific Folder?

Oct 19, 2010

I want to delete all files within a specific folder without actually deleting the folder, what is a good bash command for this?. I found this one but encountered some errors even though I am executing it within the specific folder:

useratdebian:/home/user/folder# find . -type f -exec rm -rf {} ;
[1] 5052
useratdebian:/home/user/folder# find: missing argument to `-exec'
[1]+ Exit 1 find . -type f -exec rm -rf

The command as it appears is:

find . -type f -exec rm -rf {} ;

how to delete only the files contained within the folder called "folder" for example?

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