Sponsored Content
Top Forums UNIX for Advanced & Expert Users Recursive directory search using ls instead of find Post 302536928 by ctsgnb on Wednesday 6th of July 2011 02:02:54 PM
Old 07-06-2011
I am also quite sceptical.

By the way, ls perform an ascii sorting by default if you are in a directory with several tousands of files, this sorting operation can be consumming and may slow down the processing.

To avoid it you can use the -f option to get the inode in the order they will comme from the directory structure, this will avoid useless sorting, especially when you pipe your ls output in a wc -l

A lot of the performance problem are because of weak algorithm logic or approach, going through a redesigning step logic can then speed up processing.

I am curious to see the code of the initial "poor performance" script that was using the find command.

Sharing your code is still a nice intention.

Here are some example of performance problem because of wrong logic or bad use of find command :

https://www.unix.com/shell-programmin...nce-issue.html

https://www.unix.com/unix-dummies-que...-txt-file.html

Last edited by ctsgnb; 07-06-2011 at 03:08 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

find file with date and recursive search for a text

Hey Guyz I have a requirement something like this.. a part of file name, date of modification of that file and a text is entered as input. like Date : 080206 (MMDDYY format.) filename : hotel_rates text : Jim now the file hotel_rates.ZZZ.123 (creation date is Aug 02 2006) should be... (10 Replies)
Discussion started by: rosh0623
10 Replies

2. UNIX for Dummies Questions & Answers

Unix find command to print directory and search string

Hi i need to print pathname in which the string present using 'find' command sample output like this Pathname String to be searched ---------- -------------------- /usr/test/myfile get /opt/test/somefile get Thanks in... (4 Replies)
Discussion started by: princein
4 Replies

3. Shell Programming and Scripting

non recursive search in the current directory only

Hi, Am trying for a script which should delete more than 15 days older files in my current directory.Am using the below piece of code: "find /tmp -type f -name "pattern" -mtime +15 -exec /usr/bin/ls -altr {} \;" "find /tmp -type f -name "pattern" -mtime +15 -exec /usr/bin/rm -f {} \;" ... (9 Replies)
Discussion started by: puppala
9 Replies

4. Shell Programming and Scripting

search directory-find files-append at end of line

Hi, I have a command "get_data" with some parameters in few *.text files of a directory. I want to first find those files that contain this command and then append the following parameter to the end of the command. example of an entry in the file :- get_data -x -m50 /etc/web/getid this... (1 Reply)
Discussion started by: PrasannaKS
1 Replies

5. UNIX for Dummies Questions & Answers

Restricting a Find search to the current directory only

Hi All, I am trying to delete file (with a mtime older than 2 days) from the current directory ONLY using: find . -daystart -maxdepth 1 -mtime 2 -exec rm {} \; but this doesn't seem to work it is still find files in subdirectories which I don't want to delete. Please can anyone offer... (2 Replies)
Discussion started by: daveu7
2 Replies

6. Shell Programming and Scripting

Find command to search files in a directory excluding subdirectories

Hi Forum, I am using the below command to find files older than x days in a directory excluding subdirectories. From the previous forums I got to know that prune command helps us not to descend in subdirectories. Though I am using it here, not getting the desired result. cd $dir... (8 Replies)
Discussion started by: jhilmil
8 Replies

7. Shell Programming and Scripting

How to restrict Find only search the current directory?

hello, all I have googled internet, read the man page of Find, searched this forum, but still could not figure out how. My current directory is: little@wenwen:~$ pwd /home/little little@wenwen:~$ I want to use find command to list the files in my current directory, how should i write... (3 Replies)
Discussion started by: littlewenwen
3 Replies

8. UNIX for Dummies Questions & Answers

Help needed - find command for recursive search

Hi All I have a requirement to find the file that are most latest to be modified in each directory. Can somebody help with the command please? E.g of the problem. The directory A is having sub directory which are having subdirectory an so on. I need a command which will find the... (2 Replies)
Discussion started by: sudeep.id
2 Replies

9. UNIX for Dummies Questions & Answers

How to search in specific directory using find?

Hi, Is there any way to use find command and search only specific subdirectories in a directory. for example /home/d1 /home/d2 /home/d3 i want to search in the following directories /home /home/d1 /home/d2 i do not want the find command to search the /home/d3 directory. (6 Replies)
Discussion started by: Little
6 Replies

10. Shell Programming and Scripting

Recursive folder search faster than find?

I'm trying to find folders created by a propritary data aquisition software with the .aps ending--yes, I have never encountered folder with a suffix before (some files also end in .aps) and sort them by date. I need the whole path ls -dt "$dataDir"*".aps"does exactly what I want except for the... (2 Replies)
Discussion started by: Michael Stora
2 Replies
URI::URL(3)						User Contributed Perl Documentation					       URI::URL(3)

NAME
URI::URL - Uniform Resource Locators SYNOPSIS
$u1 = URI::URL->new($str, $base); $u2 = $u1->abs; DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to be distributed with the libwww-perl library. The following differences exist compared to the "URI" class interface: o The URI::URL module exports the url() function as an alternate constructor interface. o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase". o The URI::URL->newlocal class method is the same as URI::file->new_abs. o URI::URL::strict(1) o $url->print_on method o $url->crack method o $url->full_path: same as ($uri->abs_path || "/") o $url->netloc: same as $uri->authority o $url->epath, $url->equery: same as $uri->path, $uri->query o $url->path and $url->query pass unescaped strings. o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters) o $url->params and $url->eparams methods o $url->base method. See URI::WithBase. o $url->abs and $url->rel have an optional $base argument. See URI::WithBase. o $url->frag: same as $uri->fragment o $url->keywords: same as $uri->query_keywords o $url->localpath and friends map to $uri->file. o $url->address and $url->encoded822addr: same as $uri->to for mailto URI o $url->groupart method for news URI o $url->article: same as $uri->message SEE ALSO
URI, URI::WithBase COPYRIGHT
Copyright 1998-2000 Gisle Aas. perl v5.18.2 2012-02-11 URI::URL(3)
All times are GMT -4. The time now is 10:53 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy