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Full Discussion: add line in file and change file name
Top Forums Shell Programming and Scripting add line in file and change file name Post 302698009 by Corona688 on Friday 7th of September 2012 05:58:28 PM
Old 09-07-2012
That's rather a roundabout way of doing it... See Useless Use of Backticks.
Code:
OLDIFS="$IFS"
IFS="-_."

ls | while read A B C D EXT
do
        echo mv "${A}_${B}_${C}-${D}.${EXT}" "${B}.${EXT}"
done

IFS="$OLDIFS"

Remove the echo once you've tested it and are sure it does what you want.
This User Gave Thanks to Corona688 For This Post:
pamu
 

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LEARN ABOUT CENTOS

vfs_prealloc

VFS_PREALLOC(8) 					    System Administration tools 					   VFS_PREALLOC(8)

NAME

       vfs_prealloc - preallocate matching files to a predetermined size

SYNOPSIS

       vfs objects = prealloc

DESCRIPTION

       This VFS module is part of the samba(7) suite.

       The vfs_prealloc VFS module preallocates files to a specified size each time a new file is created. This is useful in environments where
       files are of a predetermined size will be written to a disk subsystem where extending file allocations is expensive.

       This module is stackable.

OPTIONS

       prealloc:EXT = BYTES
	   Preallocate all files with the extension EXT to the size specified by BYTES.

	   The following suffixes may be applied to BYTES:

	   o   K - BYTES is a number of kilobytes

	   o   M - BYTES is a number of megabytes

	   o   G - BYTES is a number of gigabytes

EXAMPLES

       A process writes TIFF files to a Samba share, and the is known these files will almost always be around 4 megabytes (4194304 bytes):

		   [frames]
		path = /data/frames
		vfs objects = prealloc
		prealloc:tiff = 4M

CAVEATS

       vfs_prealloc is not supported on all platforms and filesystems. Currently only XFS filesystems on Linux and IRIX are supported.

VERSION

       This man page is correct for version 3.0.25 of the Samba suite.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

Samba 4.0							    06/17/2014							   VFS_PREALLOC(8)
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