General :: Sed - Replacing Only Text With Several Specific Lines Excluded

Jun 17, 2010

As much as I didn't want to ask a sed question, especially considering there's already one on this page I've looked as best I could and cant find the solution. Id like to use sed to replace occurrences of a pattern but exclude two or 3 specific lines that are not consecutive. For example I know with 1,10 i could exclude the first 10 lines, what is the syntax if I just wanted to exclude line 3 and 7. The sed command I'm working with right now is for rearranging Ethernets.

cat /etc/udev/rules.d/70-persistent-net.rules | sed -e '/'"$found1fullmac"'/!s/eth1/'"found1eth"'/' > /etc/udev/rules.d/70-persistent-net.rules

I would like to replace $found1fullmac with two variables representing line numbers to exclude from the replacement.

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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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General :: Change A Specific Characters To Capital In A Specific Text?

Dec 2, 2010

for example

else {
for fileDOC in $location/*.doc
do

[code]...

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General :: Replacing Text In A File?

Jul 26, 2010

how to replace following text in the file name.cfg ?I need to replace

name:=inet.hr=>1|inet.hr=>1
with
name:=none
I am using
sed -i 's/name:=inet.hr=>1|inet.hr=>1/name:=none/g' name.cfg

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General :: Replacing The Text In Same File Using SED Command?

Oct 11, 2010

I have a String like "A.words=Ajay,Anil" in file A.And it contains a lot of other information also. I wanted to replace "Ajay,Anil" with "Vijay,Vinay" with sed command with using existing file only(not using another file)

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General :: Display Specific Block Of Contents Or Lines In Output?

Apr 23, 2010

Consider a situation in which you want to display only specific lines of contents from a file or of a command's output. Yes, we have head and tail commands. But, how to view all the lines of a file except the last one or vise versa when we don't know the count of lines in advance?

Consider this output:

Code:

[root@localhost ~]# ps au | grep bash
root 6316 0.0 0.0 4672 1440 tty1 Ss+ Apr22 0:02 -bash
root 20847 0.2 0.0 4672 1432 pts/0 Ss Apr23 0:12 -bash
root 21167 0.0 0.0 3920 660 pts/0 S+ 01:00 0:00 grep bash

Here, I don't want the last line (in italic) to be included in the result since the last line is due to "grep bash" in the devised command "ps au | grep bash". Well, we can rewrite the devised command:

Quote:

"ps au | grep bash | head -n 2"

But, again, here we are specifying the count of lines to be included. But, in the presented problem we don't know any count in advance!

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Programming :: Replacing Lines With Pattern Partialy By Different File?

Apr 12, 2010

I have two files, where the 1. file has special lines that need to be updated by lines from a 2. file:file1:

foo
foo
foo 0.00 0.00 0.00 pattern

[code]....

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General :: Rename A File By Replacing Specific Letters In The File?

May 11, 2010

I used a script that renamed my file eg 'echo webutil.olb | tr [A-Z] [a-z]' i wanted to rename it back to webutil.olb. How do i do this for many other files that i have

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Programming :: Replacing Set Of Characters In A Specific Line Using Sed Or Awk?

Dec 29, 2010

I would like to replace 'xxxx' with 'yyyy' which is in a file xyz.csproj not sure of what 'xxxx' is, it can be 3055, 4056, 7089 etc. I know it always appears at line # 5 and at character 50.

<Reference Include="System.Management" />
<Reference Include="System.ServiceProcess" />
<Reference Include="System.Windows.Forms" />

[code]....

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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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General :: Comparing Lines In 2 Text Files?

Nov 5, 2010

Is there a way, besides writing a PERL program, to read each line one by one in file A and tell if this line also exists in file B? Can this be done via a shell script?

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General :: Deleting Lines From Text Files

Sep 17, 2009

Is there anyway to delete certain paragraphs within a text file and then insert the paragraph into another text file.I just cannot figure out how to remove the specific lines from the file and then insert them into another file at a certain line within that new file. Thanks again

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General :: Use AWK To Print Out First Few Lines Of A Text File?

Jul 27, 2011

I have a few rather large text files, and I need a way to look at the first three lines of each. Is there a way to do this using awk?

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Programming :: Bash Text To Variable Accessing Individual Text Lines?

May 2, 2010

i am on processing text tasks And i found that if you assign a text to a variable is chomp'ed automatically the newline

Code:

variable=$(cat file.txt)

The problem is i can only access the items/lines using:

Code:

for line in $variable
do
echo $line
# Other commands
done

how do i convert this to an indexed array. More importantly, how do i get access to individual $line[0], ..., $line[n] Another thing, if the file.txt, has lines with spaces it is a mess using the for...in..., but echoing prints line by line...o_0

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Programming :: Adding Lines Of Text To Beginning Of Text File

Jan 19, 2009

I need to insert 3-4 lines of text to the beginning of a text file. The file is a largish MYSQL dump, the result of a backup shell script. This shell script should insert the required text.I've wrestled with sed, but lost.

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General :: Grep Multiple Lines From A Text File

Jun 17, 2009

I have a list of words that I want to grep in many files to see which ones have it and which ones dont. in the text file I have all the words listed line by line, ex: list.txt:

check
try this
word1
word2
open space
list ..

I want to grep each line one by one. like I want it to

grep "check" *.log
grep "try this" *.log
grep "word1" *.log .. etc how can I do this?

and maybe write the output to a file.

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General :: Set More Lines To Scroll Backwards, In Text Mode?

Dec 27, 2010

I want to scroll back 10000+ lines in text mode linux terminal. As there is an unlimit option in gnome-terminal, so I guess if this is also possible in text mode?

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General :: Compare 2 Text Files And Change Lines?

Jul 21, 2011

in the shell. how do i compare 2 text files and change matching lines in one of the files ?

example:
cat file_1.txt
line_1

[code]...

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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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General :: Splitting Text Files Into Parts With 2000 Lines

Sep 7, 2010

I am facing a problem while splitting a text file, I need to split a file into some parts and each split file should have 2000 lines, when I do it through "split" command the mother file is kept intact but as per my requirement I need to cut mother file into some parts thus it should not be kept intact.

Example:
file size
motherfile.txt 5000 lines.
after split
motherfile.txt 2000 lines.
childfile1.txt 2000 lines.
childfile2.txt 1000 lines.

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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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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 :: Replacing Text With A Http Link With Sed?

Dec 10, 2010

Been at this all morning and fail on every attempt.

I have a file called sitemapindex.xml

Its contents just are names of the other sitemaps. Google gets pissy because it isn't in a http:// format.

So, I need "<loc>sitemap-c1mediawiki-............</loc>" to be replaced with "<loc>http://domain.tld/sitemap-c1mediawiki-............</loc>".

Here's the expression I've been trying:

find /path/to/site/sitemap-index-c1mediawiki* -type f | xargs sed -i 's/[<loc>sitemap]/[<loc>http://domain.tld/]/'

It fails.

I've tried with and without brackets.

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General :: Recursive Search For Files That Hold Some Specific Text?

Jan 18, 2011

How do I recursively generate a text file which has a list of all files on my server which contain a specific string anywhere in the files?

I know the following command can be used to replace a string recursively

find /var/www -type f -print0 | xargs -0 sed -i 's/old string/new string/g'

I do not want to replace the string, I just want a list of all files which contain the string.

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General :: Searching A Specific Directory For Files Containing A Text String?

Nov 20, 2010

I am a member of a group which has written a program whose source code is being held in a specific directory (~cs252/Assignments/basicAsst/project) and we want to go through and change the parameters for the function "sequentialInsert." My job is to find all occurances of the function call to "sequentialInsert" and to also list the files from where the code came from. Also, I have to be in the commandsAsst directory when I do this. I have tried grep and find combined together, and I am at a lost.

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General :: Zip -x For A Directory - Subfolder Contents Not Being Excluded Recursively?

Dec 9, 2010

I am attempting to use the zip command with the '-x' option to exclude a folder e.g. 'zip upload.zip public_html -x public_html/jquery/*'. However, parts of this folder are still being added to the archive. I made a shell script (saved as 'compress.sh' and ran as '. compress.sh') to do the archiving so I could test adding nested wildards for multiple subfolder levels.

Code:

#!/bin/bash
rm -f upload.zip
zip -r upload.zip public_html
-x public_html/jquery

[code]....

Each new line I added here that has the nested wildcards made the archive file size a bit smaller. Adding more /*'s than this didn't affect the file size. Even after all this though, there were still a couple megabytes of files and folders from the 'jquery' directory that were added to the archive.

Here's some examples of files and folders that were created after I unzipped the archive:
public_html/jquery/js/tablesorter/addons/pager/icons [folder]
public_html/jquery/js/tablesorter/addons/pager/.svn/entries [file]
public_html/jquery/js/tablesorter/build/.svn/text-base/js.jar.svn-base [file]

Why is it that despite all the -x lines, the files and folders like these were still being added to the archive? How can I simply recursively exclude the entire public_html/jquery folder from the archive?

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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 :: Updating A Text File (replacing The Existing Parameters With The New Values)

Nov 9, 2010

I have a text file that needs to be updated to be used by some fortran code later. it looks like that:

1,1 !Ms for y-stations, Ns for x-stations
0,0,0, !xsta, ysta, zsta

I need to replace the "0,0,0" with new values for xsta,ysta and zsta;

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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 :: 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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