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Top Forums Shell Programming and Scripting Trying to find and rename files Post 302969614 by bbbngowc on Thursday 24th of March 2016 03:17:19 PM
Old 03-24-2016
Trying to find and rename files

but it's not working.

Hello all.

I'm running the following command to find files with a specific name and rename them, but the command prompt returns a short 10 seconds after executing and doesn't find or rename anything.

What am I doing wrong here?

Code:
find . -type f | for file in *_D.pdf; do new=`echo $file | cut -c-20`; mv $file $new.pdf; done

I should mention there are A LOT of files in the directories.
 

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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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