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Full Discussion: Shell Script to rename files
Top Forums Shell Programming and Scripting Shell Script to rename files Post 302299793 by yakuzaa on Saturday 21st of March 2009 12:24:57 PM
Old 03-21-2009
Bug Shell Script to rename files
Hi, i need a bit of help writting a tcsh script which renames all ascii text files in the current directory by adding a number to their names before the extension

so for example, a directory containing the files

Hello.txt
Hello.t
Hello

should have the following changes,

Hello.txt should be converted to Hello_a1.txt
Hello.t should be converted to Hello_a2.t
Hello should be converted to Hello_a3

so it should put a _a and a number incrementing accordingly.
*********************************************************

Im new to tcsh scripting, though i tried implementing it, and this is where i get to.


#!/bin/tcsh
set n = 1
foreach f ( * )
echo file $f == ascii
if ( $? == 0 ) then
mv "$f:r" "$f:r"_a$n
@ n += 1
endif
end
echo $n changed

I am aware that some parts are incorrect, and that I might be missing something, thats where i need help.

thanks.
 

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LEARN ABOUT LINUX

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 v5.12.4							    2011-08-10								 RENAME(1)
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