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Full Discussion: BASH find filenames in list that match certain "pattern."
Top Forums Shell Programming and Scripting BASH find filenames in list that match certain "pattern." Post 302453380 by SilversleevesX on Wednesday 15th of September 2010 05:40:25 AM
Old 09-15-2010
BASH find filenames in list that match certain "pattern."
I guess by "pattern," I mean something different from how that word is defined in the Linux world. If you take $ to mean a letter (a-z) and # to mean a number (0-9), then the pattern I'm trying to match is as follows:
Code:
$$$##-####-###-###.jpg

I'd like to write a script that reads in a list of files line by line; such a list will be one where the greater number of the filenames, but by no means all of them, match that letter-number plus hyphen and extension pattern. The script finds and prints (to stdout or a text file) the names of the ones that do not conform to that pattern -- maybe there are only two (instead of three) numbers before the ".jpg"; maybe it's missing one of the 3-digit strings or the odd one is a number short; whatever the difference is, this would be the output. The ultimate purpose is to automate a renaming process (or rename the files by hand, using the generated list as a reference) to get all the files to match this letter-number-hyphen-extension sequence in their names. I hope I'm making sense here.

Can it be done in BASH? Or should I go looking elsewhere (Perl, Python, C++, etc.)?

BZT
 

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LEARN ABOUT DEBIAN

mrename

MRENAME(1)						      General Commands Manual							MRENAME(1)

NAME

       mrename - program to rename files

SYNOPSIS

       mrename 'pattern' prefix [option]

DESCRIPTION

       This  manual  page  documents  briefly the mrename command.  This manual page was written for the Debian GNU/Linux distribution because the
       original program does not have a manual page.

       mrename is a tool for easy and automatic renaming of many files.  The 'pattern' is the pattern to search files to rename (quoted  to  avoid
       that  bash  resolve  it),  and prefix is the prefix that will be added to the name of each file. The two alternative options for copying or
       moving files in the new name are explained below.  All parameters are needed, and you have to stay and launch the script in the same direc-
       tory of the files to be renamed. The program should be able to write in this directory.

OPTIONS

       There are only the following three options.

       -c     The option -c will copy each file with the new filename.

       -m     The option -m will move each file in the new filename.

       -h     Display help.

EXAMPLE

       If  you	have  a  directory  with two jpeg images prof.jpg and forp.jpg and you want to add them a prefix like item0, item1 etc..  (that is
       item0prof.jpg, item1forp.jpg etc..) do this:

	  cd /path/to/the/images
	  mrename '*.jpg' item -c

       to copy each matching file into another with the new name

	  mrename '*.jpg' item -m

       to rename each file without keeping a copy with the previous name

Word-Wide-Web:
       http://alfalinux.sourceforge.net/mrename.php3

AUTHOR
:
       Giancarlo -rofus- Erra
       e-mail: rofus@mindless.com

       This manual page was written by Dr. Guenter Bechly <gbechly@debian.org>, for the Debian GNU/Linux system (but may be used by others). It is
       distributed under the GPL just like mrename itself.

								 October  22, 2000							MRENAME(1)
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