FreeBSD - Tutorials, Security
Home   Archives   Sitemap   About   Contact

How to cut out first last n characters from each file name, from a filelist

Home NEW! Unix Forum News 100 Tips and Tricks Website Development Server Operating Systems Databases
 Ivorde.ROarrow Server Operating Systems arrowAdministration GuidesarrowHow to cut out first last n characters from each file name, from a filelist 

Article Sections

    Hello, Guest !
User name:
Password:
 
Google

 SSD VPS Hosting - Vpsie.com
 Mo.nitor.me
 Ivorde forum
 FreeBSD Tutorials
 Linux LVM Commands
 Free Shell Accounts
 FreeBSD Project
 FreeBSD Handbook
 Advanced Bash-Scripting Guide
 The OpenBSD Project
 Distrowatch
 FreeBSD Handbook


Apache Webserver Home Page

Blog, intrebari si raspunsuri despre Leasing

Posted on: 04 Nov 2008
Author: mandrei
Section: Server Operating Systems | Administration Guides
Views: 3654
Comments: 1 (Add)

How to cut out first last n characters from each file name, from a filelist
How to cut out first n characters from a list of filenames / remove first three characters from a list of filenames / How to cut out last n characters from a list of filenames / remove last three characters from a list of filenames

 



Based on the comment posted by a visitor on How to remove first/last character from a string using SED article, I decided to create this simple example in which I will remove the first three characters from each file from a filelist.

Removing the first three characters from each file from a filelist

$ touch kkt.asdf
$ touch tre.gsew
$ touch oir.acr
$ ls -a
kkt.asdf        oir.acr         tre.gsew

 At this point, the files are created in the curent working directory. Following command will list all files and, for each file, a new variable ($file_new) will take the value of the name of the file, without the last three characters:

$ ls | while read file; do file_new=`echo "$file" | sed 's/...\(.*\)/\1/g'`; mv "$file" "$file_new"; done

 and now, that all files were renamed (moved) so that the first three characters were removed:

$ ls -a
.       ..      .acr    .asdf   .gsew

(the order has changed because it is alphabetical)

P.S.: I advise you to test this before you try it AND carefull if you run it as root (and where you run it).

P.S.2: it can be modified so that it handles files in other directory than CWD and it can also be modified to remove the last three...four... characters.

Bookmarks: Echo "How to cut out first last n characters from each file name, from a filelist" around:
del.icio.usdiggFurlYahooMyWebGoogleBookmarksFaceBookTechnocratti
-------------------advertising-----------------

Other articles in Server Operating Systems / Administration Guides
» How to remove first/last character from a string using SED
» Substitute strings in files with perl, sed or vi(m)




Contact webmaster regarding this article
Register or Login to post your article
Hello, Guest ! You can Login or Register to www.ivorde.ro!

 Post comment:

Name:
Title:
Comment:
Please type the word you see in the image (anti-spam verification). Refresh the page if you don't understand the word.
Verification code
Allowed HTML Tags for comments:<p><strong><em><u><h1><h2><h3><h4><h5><h6><img><li>
<ol><ul><span><div><br><ins><del>

1 comment(s) to How to cut out first last n characters from each file name, from a filelist:

1. Re: How to cut out first last n characters from each file name, from a filelist
idk by Nicky breus at May 01st, 2012 - 00:07
I need a letter taken out of my name

   Latest topics on the forum:
 
   Most viewed articles:
ProFTPd + MySQL - 530 Login incorrect - 8677 views
Qmail relay to smarthost: How to route all mail to a smarthost - 7799 views
How to remove first/last character from a string using SED - 7504 views
FreeBSD: Add/remove an additional IP alias - 7364 views
How to copy a mysql database using mysqldump - 6518 views

   Latest 10 articles:
Qmail relay to smarthost: How to route all mail to a smarthost - 03 Feb 2009
EXIM 4 relay to smarthost: How to route all mail except local domain - 03 Feb 2009
Windows XP: print LISTEN ports and network connections using netstat - 30 Jan 2009
How to cut out first last n characters from each file name, from a filelist - 04 Nov 2008
Mozilla Firefox3 is now released - 18 Jun 2008
How to switch lower case to upper case and upper case to lower case in a string - 17 Jun 2008
How to rename files/directories to uppercase/lowercase character names - 17 Jun 2008
How to convert lower case to upper case letters in a shell script/command - 17 Jun 2008
Unix,Linux,FreeBSD - How to rename a list of files, replacing spaces inside their names - 12 Jun 2008
How to change a user's password in AIX with the output from ECHO command - 21 May 2008


Archives
» 2007  |  June  |  October  |  November  |  December
» 2008  |  January  |  February  |  March  |  April  |  May  |  June  |  November
» 2009  |  January  |  February



Home | Archives | Sitemap | About | Contact

Designed and developed by Andrei Manescu. Optimized for Mozilla Firefox.  
Copyright 2007 Andrei Manescu
All trademarks and copyrights on this page are owned by their respective owners. Comments are owned by those who posted them.
Valid W3 Document Valid XHTML 1.0 Transitional Valid CSS! The FreeBSD Project Viewable With Any Browser