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Full Discussion: Incremental numbering?
Top Forums Shell Programming and Scripting Incremental numbering? Post 302763269 by bakunin on Tuesday 29th of January 2013 07:51:26 PM
Old 01-29-2013
It would help to know which shell you are using.

The most likely shells - ksh and bash - both can do this the following way:

First, extract from the file name the part you want to increment as a number,
Second, increment the isolated number,
Third: reconstruct the new filename with the number.

For instance, in ksh:

Code:
typeset    infile="XXX_007_0580_xxxx_v0016.aep"
typeset -i num=0
typeset    outfile=""
typeset    work=""

work="${infile%.???}"     # cut off extension
num=${work#?????????????????????}      # cut off anything before "16"

(( num += 1 ))                  # increment number
outfile="XXX_007_0580_xxxx_v00${num}.eap"   # reconstruct file name

You probably got the gist of this and can adapt this procedure to your needs.

I hope this helps.

bakunin
 

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file::spec::functions

File::Spec::Functions(3pm)				 Perl Programmers Reference Guide				File::Spec::Functions(3pm)

NAME

       File::Spec::Functions - portably perform operations on file names

SYNOPSIS

	       use File::Spec::Functions;
	       $x = catfile('a','b');

DESCRIPTION

       This module exports convenience functions for all of the class methods provided by File::Spec.

       For a reference of available functions, please consult File::Spec::Unix, which contains the entire set, and which is inherited by the
       modules for other platforms. For further information, please see File::Spec::Mac, File::Spec::OS2, File::Spec::Win32, or File::Spec::VMS.

   Exports
       The following functions are exported by default.

	       canonpath
	       catdir
	       catfile
	       curdir
	       rootdir
	       updir
	       no_upwards
	       file_name_is_absolute
	       path

       The following functions are exported only by request.

	       devnull
	       tmpdir
	       splitpath
	       splitdir
	       catpath
	       abs2rel
	       rel2abs
	       case_tolerant

       All the functions may be imported using the ":ALL" tag.

COPYRIGHT

       Copyright (c) 2004 by the Perl 5 Porters.  All rights reserved.

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

SEE ALSO

       File::Spec, File::Spec::Unix, File::Spec::Mac, File::Spec::OS2, File::Spec::Win32, File::Spec::VMS, ExtUtils::MakeMaker

perl v5.12.1							    2010-04-26						File::Spec::Functions(3pm)
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