Sponsored Content
Top Forums Shell Programming and Scripting Delete files listed in text file Post 302934414 by kmanivan82 on Friday 6th of February 2015 05:48:58 PM
Old 02-06-2015
Delete files listed in text file

Hi Team,

Here's the scenario,

I have a text file called "file_list.txt". Its content is as follows.
111.tmp
112.tmp
113.tmp
114.tmp

These files will present in "workdir" directory. It has many files. But only the files present in file_list.txt has to be deleted from the workdir directory. We have the code as follows.

Code:
while read line
do
	rm -f $workdir/${line}
done < file_list.txt

But we are facing performance issue in using while loop. In production, we will have more than 100000 files list in the text file. Can anyone help us to provide a code to improve the performance.

Thanks
 

10 More Discussions You Might Find Interesting

1. HP-UX

CVSWeb - Directories listed but files not listed

I am using CVSWeb on HPUnix. When i access it, all directories are listed but files are not listed. I am getting the error "NOTE: There are 51 files, but none matches the current tag. " in tomcat sevrer log i am getting the message "rlog warning: Missing revision or branch number after -r"... (0 Replies)
Discussion started by: ganesh
0 Replies

2. Shell Programming and Scripting

Copy files listed in a text file - whitespace problem.

Hi, Say I have this text file <copy.out> that contains a list of files/directories to be copied out to a different location. $ more copy.out dir1/file1 dir1/file2 dir1/file3 "dir1/white space" dir1/file4 If I do the following: $copy=`more copy.out` $echo $copy dir1/file1... (4 Replies)
Discussion started by: 60doses
4 Replies

3. Shell Programming and Scripting

Shellscript to sort duplicate files listed in a text file

I have many pdf's scattered across 4 machines. There is 1 location where I have other Pdf's maintained. But the issues it the 4 machines may have duplicate pdf's among themselves, but I want just 1 copy of each so that they can be transfered to that 1 location. What I have thought is: 1) I have... (11 Replies)
Discussion started by: deaddevil
11 Replies

4. Shell Programming and Scripting

Moving files listed in a data file to a new directory using Perl

Hi, I have a data file that lists a number of files. I want to move the files named in that one to another directory. Here's what I have: #!/usr/bin/perl -w open(FILE, "<collision.txt"); my @lines=<FILE>; foreach my $lines (@lines) { system("mv $lines collisions/."); } close(FILE); ... (2 Replies)
Discussion started by: renthead720
2 Replies

5. Shell Programming and Scripting

Send a mail to IDs listed in a text file

I have a list of mail ids in text file and want a ksh script that reads this text file and sends a mail to all mail ids with same subject line and content. I am using UX-HP machine and KSH. Thanks for help in advance! (5 Replies)
Discussion started by: Sriranga
5 Replies

6. Shell Programming and Scripting

Copy files listed in text file to new directory

I am trying to write a script that will copy all file listed in a text file (100s of file names) to a new directory Assume script will run with main as current working directory and I know how many files/lines will be in List.txt Im trying to work up a test script using this model Contents of... (2 Replies)
Discussion started by: IAmTheGrass
2 Replies

7. UNIX for Dummies Questions & Answers

Delete files whose file names are listed in a .txt file

hi, I need a help. I used this command to list all the log files which are for more than 10 days to a text file. find /usr/script_test -type f -mtime +10>>/usr/ftprm.txt I want all these files listed in the ftprm.txt to be ftp in another machine and then rm the files. Anyone can help me... (8 Replies)
Discussion started by: kamaldev
8 Replies

8. Shell Programming and Scripting

How to grep a log file for words listed in separate text file?

Hello, I want to grep a log ("server.log") for words in a separate file ("white-list.txt") and generate a separate log file containing each line that uses a word from the "white-list.txt" file. Putting that in bullet points: Search through "server.log" for lines that contain any word... (15 Replies)
Discussion started by: nbsparks
15 Replies

9. Shell Programming and Scripting

Cat files listed in text file and redirect to new directory with same filename

I have a directory that is restricted and I cannot just copy the files need, but I can cat them and redirect them to a new directory. The files all have the date listed in them. If I perform a long listing and grep for the date (150620) I can redirect that output to a text file. Now I need to... (5 Replies)
Discussion started by: trigger467
5 Replies

10. Shell Programming and Scripting

Want to delete the junk files from a directory which are not listed in a TEXT file

Hello Everyone, I want to delete the image files from a directory, which are not listed in a TEXT file. The directory contains large number of image files (in millions) required / not required. I want to delete the image files which are "not required". I have generated a Text file having... (3 Replies)
Discussion started by: Praveen Pandit
3 Replies
Touch(3pm)						User Contributed Perl Documentation						Touch(3pm)

NAME
File::Touch - update access and modification timestamps, creating nonexistent files where necessary. SYNOPSIS
use File::Touch; @file_list = ('one.txt','../two.doc'); $count = touch(@file_list); use File::Touch; $reference_file = '/etc/passwd'; $touch_obj = File::Touch->new( reference => $reference_file, no_create => 1 ); @file_list = ('one.txt','../two.doc'); $count = $touch_obj->touch(@file_list); DESCRIPTION
Here's a list of arguments that can be used with the object-oriented contruction: atime_only => [0|1] If nonzero, change only the access time of files. Default is zero. mtime_only => [0|1] If nonzero, change only the modification time of files. Default is zero. no_create => [0|1] If nonzero, do not create new files. Default is zero. reference => $reference_file If defined, use timestamps from this file instead of current time. Default is undefined. atime => $time If defined, use this time (in epoch seconds) instead of current time for access time. mtime => $time If defined, use this time (in epoch seconds) instead of current time for modification time. Examples Update access and modification times, creating nonexistent files use File::Touch; my @files = ('one','two','three'); my $count = touch(@files); print "$count files updated "; Set access time forward, leave modification time unchanged use File::Touch; my @files = ('one','two','three'); my $day = 24*60*60; my $time = time() + 30 * $day; my $ref = File::Touch->new( atime_only => 1, time => $time ); my $count = $ref->touch(@files); print "$count files updated "; Set modification time back, update access time, do not create nonexistent files use File::Touch; my @files = ('one','two','three'); my $day = 24*60*60; my $time = time() - 30 * $day; my $ref = File::Touch->new( mtime => $time, no_create => 1 ); my $count = $ref->touch(@files); print "$count files updated "; AUTHOR
Nigel Wetters Gourlay (nwetters@cpan.org) COPYRIGHT
Copyright (c) 2001,2007,2009 Nigel Wetters Gourlay. All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself. perl v5.10.0 2009-07-25 Touch(3pm)
All times are GMT -4. The time now is 06:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy