Red Hat / Fedora :: Delete The First Line Of Log File ?
Mar 3, 2010I have a log file /var/log/messages. Now all i want is to delete the first line through script without disturbing provisioning the file.
View 1 Replies
ADVERTISEMENT
Programming :: Perl - Delete Line From Text File With Duplicate Match At Beginning Of Line
Apr 1, 2009Was wondering if any perl guru's could help me with a quick log file adjustment. I have a text file that looks like so (tabs and newlines are revealed so you can see what separates the data):
There are maybe 100 lines of text in this file at any given time. I need to delete all duplicate lines only looking at the first bit of text prior to the first tab. It doesn't matter which one gets deleted as long as there are no two lines that begin with that same text at the beginning before the first tab. So in this example, either the fist line "1234" or the last line "1234" would need to be deleted. I already have code in my script that opens the files - I just need the code to read the text into an array and the part that would find matches based on the above criteria, and make the deletions.
If it would be easier, I can even do a system call and use SED (v4.1.5) and/or AWK (3.1.5) instead.
General :: Delete Line From File?
Nov 11, 2010I was creating a few scripts, I am trying to create a restore script to restore files that have previously been moved to a folder I selected. When moved I stored the original path for these files all in one text file.
I want to know if anyone can tell me how to delete the line from the file after using it restore the file. I have used the grep command to search through the file "pathName" to find where the file was stored but now want to delete that same line.
Programming :: Gawk - Delete Line In File?
Oct 13, 2010I want to delete lines which contain the word "Fehler" but for some reason my programm isn't working:
Code: BEGIN { FS="|"
OFS="|"
SUBSEP="|"
[code]...
General :: How To Delete A Line From A Busy File
Mar 3, 2010I have a log file which is continously being accessed. Now I want to delete the first line without disturbing the file.Is it possible? The Issue is the log file is being provisioned with ^@^@^@ characters in the first line occupying huge space.So I need to get rid of that. I dont have time to work with root cause but just a script to reduce this space.
View 3 Replies View RelatedProgramming :: Bash - Delete Only One Line From A File?
Apr 9, 2011I would like to delete a single line from a file that contains many lines passing through the same values as the two parameters. Again, I would like to delete a single line and not all those that contain parameters. How can I make bash?
View 14 Replies View RelatedGeneral :: One Line Command To Delete All But The Last N Revisions Of A File
Mar 31, 2011What's a Unix/Linux one-liner that will let me delete all but the most recent N revisions of each file?
I've got a bunch of files with revision numbers as part of a legacy asset-management system:
bar.r7.js
bar.r8.js
bar.r9.js
bar.r10.js
bar.r11.js
[Code]....
I want to keep the last three of each, so in the above list the command would delete bar.r7.js, bar.r8.js and foo.r1.js.
Programming :: Delete A Line From File Using Shell Script?
Oct 16, 2010i have a file containing contents as
1 2 3
2 2 3
11 2 3
now i want to delete the line which first column content is 1. so, if i pass the parametere 1 to function delete_row. is should remove the first row as
2 2 3
11 2 3
and then write the contents in file.
Programming :: Delete Line In File Matching String?
Jan 26, 2010Quote: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]....
Server :: Find A String In A File And Delete That Line As Well As X Lines After?
Jun 24, 2010I need to find a string in a file ... then delete the line it is on, as well as the next 6 lines. Or, delete the line the string is on and all subsequent lines until the search finds the character "["
example:
filename = test.txt
contents:
[foo]
test>test
test>test
test>test
[Code]....
so, in this example. I'd like to search the file for string 'foo' and delete all lines from that line until [bar] (not deleting the line with [bar])
Fedora :: Run Dd To Delete The Line Which The Cursor Locates?
Sep 21, 2009when I running vi ,I'd like to run some command(such as dd,p,/word),but I know little of these command,Can I get a manual of that by run some command ,Do you understand what I said,For example,I can run dd to delete the line which the cursor locates,Is there a command (maybe "help" or other)to show the help information about the operation on vim in this condition,not in bash ,not "man vi",
View 6 Replies View RelatedFedora :: Command Line To Recurse And Delete Filename-1.jpg?
Oct 26, 2010I just installed Picasa from google and it has corrupted my picture database. The good thing is that it has done it in an organized manner. It appended -1 -2 -3 and so on to the copies file name. They look like (filename.jpg filename-1.jpg filename-2.jpg) the original having no numerical suffix just (filename.jpg)How do i write a command line to remove all of the undesirables without deleting the origionals?
View 7 Replies View RelatedGeneral :: How To Delete A Line At Specific Line Number
Jun 15, 2010I m writing a script to delete a line at particular location.
But i m unable to use variable for specifying line number.
For example.
Code:
works fine and deletes 7th line from my file
But
Code:
gives following error.
Code:
Programming :: Delete Line Of Text From Text File Via Shell?
Jan 13, 2010I have to delete a certain line of text from the a textfile via ubuntu's shell scripting.I have done research, and it seems that most people advocate the usage of sed /d option. sed makes does not edit the text file. Hence, most options I discovered involved the use of a temporary variable/textfile and then overwriting the old file with the temporary new file. Is there anyway whereby I can bypass the use of temporary storage containers? I hope there is any magical combination of commands to edit the file directly.
View 3 Replies View RelatedRed Hat / Fedora :: Edit A Text File To Delete All Commas In The File?
Jan 4, 2011i want to find a command line way to edit a text file to delete all commas in the file. i do not want to replace them w/ anything.
View 2 Replies View RelatedProgramming :: Access A File Line By Line, And Check The Length Of Each Line.
Feb 13, 2011I want to access a file, and check the length of every line.After, i want to check and replace all lines with length over 10 characters, with a message.Does anyone have a clue on that?
View 1 Replies View RelatedUbuntu :: Delete File - No Right Click Delete Option?
Feb 18, 2010Why is there no Delete when I right click like there is with Windows in ubuntu? Pretty much everything else is there like new folder and so on Is there some way to add it? Also why when i delete something does it not ask me if I am sure that i want to delete that file?
View 6 Replies View RelatedFedora :: Unable To Delete File
Aug 12, 2010I am not able to delete any file. I am seeing following error when i am trying to delete. "The trash has reached its maximum size! Cleanup the trash manually.".
But Trash is already empty and the file i am trying to delete is only 28bytes.
the folders '~/.local/share/Trash/files' and '~/.local/share/Trash/info' are also empty and there permissions are also correct. file manager is dolphin.
i saw this problem happening after firefox crashed.
I found a file ~/.local/share/Trash/metadata with following content- [Cached] Size=18446744068999530549
After setting SIze=0, i am able to delete files.
Fedora :: How To Delete A Root Protected File
Nov 22, 2010Sorry to sound like a newbie dope but I somehow extracted a folder to the desktop and can't delete it because it says I don't have permission to read it. How can I delete this folder?
View 4 Replies View RelatedRed Hat / Fedora :: Unable To Delete Nippy File
Mar 26, 2009Somehow I managed to create a file in /some/dir/ called "-v". How can I remove it? I've tried various and many methods... rm, rm *v, moving all files except that one and then issuing rm -rf but the problem is the -v file is being taken for a switch.
View 4 Replies View RelatedFedora Servers :: Cannot Delete Directory 'foo': File Exists
Jan 17, 2009I was transferring some files from my laptop (running FC6) to a server at my work (don't know what kind) with "scp -rpC" and it stalled, don't know why.
Now when I try to delete the files from the server so I can start again I get the following error message
Code:
rm -r Single_injections/
rm: cannot remove directory `Single_injections/195320/400mA/010': File exists
rm: cannot remove directory `Single_injections/195320/400mA': File exists
rm: cannot remove directory `Single_injections/195320': File exists
rm: cannot remove directory `Single_injections': File exists
[Code].....
Fedora :: Xfce Icon - Delete / Remove File System?
Mar 17, 2011I am using F14 Xfce and i have installed awn so i do not need my desktop icons anymore, ie home,bin and file system, is there any way to delete/remove them? i have installed gconf-editor and unchecked them in apps-->nautilus-->desktop, but they are still there?
View 2 Replies View RelatedRed Hat / Fedora :: Delete The KVM Created Hard Disk Image File?
Feb 22, 2011I want to delete the KVM created hard disk image file, so I would like to know where it is located .
View 6 Replies View RelatedProgramming :: Delete Line Containing A Pattern?
Apr 1, 2011if 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]....
Red Hat / Fedora :: Edit /etc/sysconfig/iptables And Create/delete Rules Inside That File?
Sep 9, 2010can i actually edit /etc/sysconfig/iptables and create/delete rules inside that file?will it work? i just find using the IPTABLES -A or -D command a hassle
View 3 Replies View RelatedProgramming :: Delete From Open Parenthesis To End Of Line?
Aug 4, 2010Delete this with maximum prejudice, mods.
View 1 Replies View RelatedProgramming :: Sed: Delete Last Line Matching A Pattern?
Mar 27, 2011I 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]...
Ubuntu :: Delete Duplicate Files Command Line?
Apr 14, 2010Is there a way to remove duplicate files from a specific folder through SSH? I've uploaded a lot of flash games on my server and I can see in the Webmin's file manager that I have many duplicates. Their names are different, of course.
View 2 Replies View RelatedGeneral :: Delete Mail Root In Command Line
Jul 1, 2010I want to delete all may mail root in command line and i don't find this... the command mail + "d" work fine but i want use it in a .sh
I explain too : I use fetchmail to have mail from a gmail box, and use RIPMIME to save the attachment in a folder... these work fine, but the i want delete these mails.
General :: Delete A Line With Certain Format From Files In A Directory?
Sep 21, 2010I need a PHP script to delete a line with certain pattern from all filesin a directory. The Directory contain files with extensions .js,.html and.php. Do any body give a working code snippet to Read all files in a directory with above extension and delete that line from the files.
View 1 Replies View Related