Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Removing lines from a file
Top Forums Shell Programming and Scripting Removing lines from a file Post 303013320 by Don Cragun on Monday 19th of February 2018 03:11:56 PM
Old 02-19-2018
You have started well over 300 threads in the last seven years. You know what is needed for us to be able to help you efficiently:
  1. The operating system you're using (which you have not provided).
  2. The shell you're using (which you have provided).
  3. Names of files to be processed (which you have not provided).
  4. A clear statement of what you're tying to do (which you have not provided).
  5. A representative sample input file (which you have not provided).
  6. The output that you hope will be produced from your sample input (which you have not provided).
  7. The code that you have tried to solve this problem on your own (which you have not supplied). And any output (normal and diagnostic) produced by the code you have tried.
Please add another post to this thread filling in the missing information!

Note that you have said you want to remove files; but you have not made it clear whether that means that you want to physically remove files from your system, you just want to remove the names of those files from the file containing your list of filenames, or you just want to exclude those files while you process other filenames contained in file containing your list of filenames in a loop in your bash shell script.

Please don't make us guess at what you're trying to do. Tell us up front so we don't all waste our time suggesting solutions to problems unrelated to what you're trying to do.
This User Gave Thanks to Don Cragun For This Post:
kristinu
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Removing lines from a file

Hello i have 2 files file1 and file2 as shown below file1 110010000000206|567810008161509 110010000000207|567810072227627 110010000000208|567811368851555 110010000000209|567811422513652 110010000000210|567812130217683 110010000000211|567813220211182 110010000000212|567813449322589... (4 Replies)
Discussion started by: PradeepRed
4 Replies

2. Shell Programming and Scripting

Removing lines within a file

Hi There, I've written a script that processes a data file on our system. Basically the script reads a post code from a list file, looks in the data file for the first occurrence (using grep) and reads the line number. It then tails the data file, with the line number just read, and outputs to a... (3 Replies)
Discussion started by: tookers
3 Replies

3. UNIX for Dummies Questions & Answers

Removing lines from a file

I'm trying to find a command which will allow me to remove a range of lines (2-4) from a .dat file from the command line without opening the file. Someone mentioned using the ex command? Does anyone have any ideas? thanks (6 Replies)
Discussion started by: computersaysno
6 Replies

4. AIX

Removing the first and last lines in a file

Hi Gurus, I'm a little new to UNIX. How can I do remove the first and last line in a file? Say, supppose I have a file as below: 1DMA 400002BARRIE 401002CALGARY/LETHBRI 402002CARLETON 500001PORTLAND-AUBRN 501001NEW YORK, NY ... (1 Reply)
Discussion started by: naveendronavall
1 Replies

5. Shell Programming and Scripting

Removing the first and last lines in a file

Hi Gurus, I'm a little new to UNIX. How can I do remove the first and last line in a file? Say, supppose I have a file as below: Code: 1DMA 400002BARRIE 401002CALGARY/LETHBRI 402002CARLETON 500001PORTLAND-AUBRN 501001NEW YORK, NY 502001BINGHAMTON, NY ... (2 Replies)
Discussion started by: naveendronavall
2 Replies

6. Shell Programming and Scripting

Removing Lines From a File

Hi Does anybody know of a command that will enable me to remove all entries in a file that have the format (name & time) more testfile anthony 2003 anthonyr 2008 amorel 15:00 anthonyp 14:35 anthonyp 14:35 anthonyr 2008 ardean 13:28 arlene 2003 arlenem 08:15 arlenem 08:15... (5 Replies)
Discussion started by: jamba1
5 Replies

7. Shell Programming and Scripting

removing lines from file

Hi I have many files all with 1 field per line as in 12345 abcde john.paul.net 6789101 how do I remove ceratin lines from these files. Have tried sed but sed wrecks my head! Many thanks in advance for any help (9 Replies)
Discussion started by: rob171171
9 Replies

8. UNIX for Dummies Questions & Answers

removing several lines from a file

Hi folks, I have a long string of DNA sequences, and I need to remove several lines, as well as the line directly following them. For example, here is a sample of my starting material: >548::GY31UMJ02DLYEH rank=0007170 x=1363.5 y=471.0 length=478... (1 Reply)
Discussion started by: kkohl78
1 Replies

9. Shell Programming and Scripting

Removing lines from a file

Hi, I have a linux server that was hacked and I have a bunch of files that sporadically contain the following lines through out the file: <?php eval(base64_decode("Xxxxxxxxxxxxxx/xxxxxxxx")); I did't put the exact lines of the file in this post. The "Xxxx" are random letters/numbers.... (8 Replies)
Discussion started by: nck
8 Replies

10. Shell Programming and Scripting

Removing multiple lines from input file, if multiple lines match a pattern.

GM, I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed. I am assuming that sed, awk or even perl could do what I need. I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
Discussion started by: jxfish2
7 Replies

LEARN ABOUT DEBIAN

update-metainit

UPDATE-METAINIT(1)					User Contributed Perl Documentation					UPDATE-METAINIT(1)

NAME

       update-metainit - Generates init scripts

SYNOPSIS

       update-metainit [--remove initname [--purge] ]

DESCRIPTION

       Metainit solves the problem of writing good init scripts. Instead of manually creating these important files, they are derived from a
       declaritive description in the metainit files in /etc/metainit. These files can be shipped with packages or created by the local adminis-
       trator.

       If update-metainit called without argument, it will regenerate init scripts for all the files in /etc/metainit. The generated files contain
       a large warning in form of a comment that they will be overridden. Modifications are preferably done in the files in /etc/metainit and made
       effective by running update-metainit. If needed, the administrator can prevent modified init files by removing the warning comment.

OPTIONS

       --remove initname
	   This command will remove any generated and non-modified scripts that were created by the metainit file with the name initname.

       --purge
	   Only usable with --remove. Will remove the generated files even if modified.

SEE ALSO

       dh_metainit(1)

AUTHOR

       Joachim Breitner <nomeata@debian.org>

perl v5.8.8							    2007-07-30							UPDATE-METAINIT(1)
All times are GMT -4. The time now is 11:26 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy