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Full Discussion: Concatenate Numerous Files
Operating Systems Linux Fedora Concatenate Numerous Files Post 302722841 by sudon't on Sunday 28th of October 2012 07:28:22 PM
Old 10-28-2012
Use regex to change filenames
OK, I numbered the directories by hand so that they would sort in the canonical order. Now, they had the files within the directories numbered using single digit enumeration, so naturally they don't sort correctly:
Code:
./01_Old Testament/01_Genesis/Genesis1.txt
./01_Old Testament/01_Genesis/Genesis10.txt
./01_Old Testament/01_Genesis/Genesis11.txt

So I worked out a regex to place a zero in front of single digit filenames:
Code:
perl -pi -e 's/(?<=[a-z])(?=[0-9]\.txt)/0/g' ./OTfilelist.txt

I won't say how long, or how many tries it took for me to figure this out, even though I'm sure it would make for an exciting story. But, even though I am filled with a feeling of accomplishment, the filenames still do not sort correctly.
Code:
./01_Old Testament/01_Genesis/Genesis01.txt
./01_Old Testament/01_Genesis/Genesis10.txt
./01_Old Testament/01_Genesis/Genesis11.txt

No matter, because I want things to behave in the real world, too.
So, now that I have the magic regex in hand, how can I use it to change the actual filenames?
What I've been able to glean from the web is that there is a system call called "rename" which somehow should work with perl. But there is no mention of "rename" in the perl man page. On the other hand, there is a man page for rename, but it doesn't contain anything that I found illuminating. I'm guessing this is something that has to be called from a script?
I've also seen examples on the web of rename as a(n apparent) standalone executable, but I don't seem to have it. Nor can I find it though ports or fink.
Code:
-bash $ rename
-bash: rename: command not found

I guess I should mention I'm using Mac OS 10.6.8, Perl 5.12.4
Is there a different way to invoke this rename? Am I barking up the wrong tree altogether? Surely there's a one-liner solution to recursively rename files with a regex?
 

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LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_ALPHA".

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_NUMERIC".

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
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