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Full Discussion: mass renaming files with complex filenames
Top Forums Shell Programming and Scripting mass renaming files with complex filenames Post 302495955 by DGPickett on Friday 11th of February 2011 04:20:10 PM
Old 02-11-2011
Oh, extracted numbers! Sure. I never use -e on sed, just pile the lines on the command line, but with pretty spacing, sed on sed lines and shell on shell lines. You, too, deserve readable code and a lower error rate!

Still a lot of mv fork() and exec(), so PERL might have an advantage, assuming it knows how to rewrite directories internally. In C or PERL, you link() the file to the new name and unlink() it from the old name.

BTW, directories never shrink, so making new directories is not a bad idea. Big directories can waste a lot of time.
 

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LEARN ABOUT DEBIAN

prename

RENAME(1)						 Perl Programmers Reference Guide						 RENAME(1)

NAME

       rename - renames multiple files

SYNOPSIS

       rename [ -v ] [ -n ] [ -f ] perlexpr [ files ]

DESCRIPTION

       "rename" renames the filenames supplied according to the rule specified as the first argument.  The perlexpr argument is a Perl expression
       which is expected to modify the $_ string in Perl for at least some of the filenames specified.	If a given filename is not modified by the
       expression, it will not be renamed.  If no filenames are given on the command line, filenames will be read via standard input.

       For example, to rename all files matching "*.bak" to strip the extension, you might say

	       rename 's/.bak$//' *.bak

       To translate uppercase names to lower, you'd use

	       rename 'y/A-Z/a-z/' *

OPTIONS

       -v, --verbose
	       Verbose: print names of files successfully renamed.

       -n, --no-act
	       No Action: show what files would have been renamed.

       -f, --force
	       Force: overwrite existing files.

ENVIRONMENT

       No environment variables are used.

AUTHOR

       Larry Wall

SEE ALSO

       mv(1), perl(1)

DIAGNOSTICS

       If you give an invalid Perl expression you'll get a syntax error.

BUGS

       The original "rename" did not check for the existence of target filenames, so had to be used with care.	I hope I've fixed that (Robin
       Barker).

perl v5.14.2							    2014-09-26								 RENAME(1)
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