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 303013331 by kristinu on Monday 19th of February 2018 07:25:35 PM
Old 02-19-2018
Removing station data ptcc, nov
Apologies Don

---------- Post updated at 05:54 PM ---------- Previous update was at 05:43 PM ----------

And I am using GNU Trisquel

This seems to work when I try to remove filenames with data recorded from the specified station names.

Code:
arg_delstn="ptcc nov"
IFS=' ' read -r -a delstn <<< "$arg_delstn"
for stn in "${delstn[@]}"
do
  rgx="/${stn}/d" 
  echo "sed -i $rgx /tmp/wrk"
  sed -i $rgx /tmp/wrk
done

Removing days in ranges is quite a challenge. No good ideas yet.

---------- Post updated at 07:25 PM ---------- Previous update was at 05:54 PM ----------

For some reason the following removed me all the filenames

Code:
for day in {1..207}
do    
  if (( day < 10 )); then
    daytag="00$day" 
  elif (( day < 100 )); then
    daytag="0$day" 
  else
    daytag="$day"
  fi
  rgx="/.${daytag}/d" 
  echo "sed -i $rgx /tmp/wrk"
  sed -i $rgx /tmp/wrk  
done

for day in {282..356}
do    
  if (( day < 10 )); then
    daytag="00$day" 
  elif (( day < 100 )); then
    daytag="0$day" 
  else
    daytag="$day"
  fi
  rgx="/.${daytag}/d" 
  echo "sed -i $rgx /tmp/wrk"
  sed -i $rgx /tmp/wrk  
done

Last edited by kristinu; 02-19-2018 at 07:21 PM.. Reason: Example
 

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

vidir

VIDIR(1)																  VIDIR(1)

NAME

       vidir - edit directory

SYNOPSIS

       vidir [--verbose] [directory|file|-] ...

DESCRIPTION

       vidir allows editing of the contents of a directory in a text editor. If no directory is specified, the current directory is edited.

       When editing a directory, each item in the directory will appear on its own numbered line. These numbers are how vidir keeps track of what
       items are changed. Delete lines to remove files from the directory, or edit filenames to rename files. You can also switch pairs of numbers
       to swap filenames.

       Note that if "-" is specified as the directory to edit, it reads a list of filenames from stdin and displays those for editing.
       Alternatively, a list of files can be specified on the command line.

OPTIONS

       -v, --verbose
	   Verbosely display the actions taken by the program.

EXAMPLES

       vidir
       vidir *.jpeg
	   Typical uses.

       find | vidir -
	   Edit subdirectory contents too. To delete subdirectories, delete all their contents and the subdirectory itself in the editor.

       find -type f | vidir -
	   Edit all files under the current directory and subdirectories.

ENVIRONMENT VARIABLES

       EDITOR
	   Editor to use.

       VISUAL
	   Also supported to determine what editor to use.

AUTHOR

       Copyright 2006 by Joey Hess <joey@kitenet.net>

       Licensed under the GNU GPL.

moreutils							    2010-04-28								  VIDIR(1)
All times are GMT -4. The time now is 08:07 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy