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Full Discussion: [Unix] a dos style rename wont work
Top Forums Shell Programming and Scripting [Unix] a dos style rename wont work Post 302186834 by fblade1987 on Friday 18th of April 2008 08:36:14 AM
Old 04-18-2008
[Unix] a dos style rename wont work
Hey guys i'm creating a dos style rename script, so if a user types say q14.* as the 1st param and b14.* as the 2nd and will rename all q14 files to b14 but keep the extensions, so i've developed nearly the full script "i think", if i use echo(echo "if $1 had been renamed it would now be $newfile") to simulate the rename it works fine shows

Quote:
q14.1 will be renamed to b14.1
q14.2 will be renamed to b14.2
.....etc
but it becomes a whole different story if i alter that line to "mv $1 $newFile"


Code:
#!/bin/sh

case $# in
0)echo Usage: dosRename file >&2
	   ;;
*)for file
		do
				case $file in

				[A-Za-z0-9]*\.\*) type=main
					   ;;
				\*\.[A-Za-z0-9]* )type=extension
					   ;;
				esac
		#echo $type
		done

		endFile=$file

		while [ $# -ne 1  ]
		do
				case $type in
				'extension')	extension=`echo $endFile |sed -e 's/\*\./\./'`
								newfile=`echo $1 |sed -e "s/\.[A-Za-z0-9]*/$extension/"`
								echo  "if $1 had been renamed it would now be $newfile"
							 #   mv $1 $newfile
					   ;;
				'main')		 fileName=`echo $endFile | sed -e 's/\.\*//'`
								newFile=`echo $1 | sed -e "s/[A-Za-z0-9]*\.\(.*[A-Za-z0-9]*\)/$fileName\.\1/"`
								echo "if $1 had been renamed it would now be $newFile"
							#	mv $1 $newFile
					   ;;
				esac
				shift 1
		done
	   ;;

esac

it renames the 1st one fine then the rest go along the lines of

dosRename q14.* b14.*
it dose first one fine but 2nd one ends up q14.1.2 and third q14.1.2.3

any ideas what is up with my script?


edit ~ if any help if i include mv or cp the output is as followed
Quote:
if nob.1 had been renamed it would now be b14.1
if nob.1.2 had been renamed it would now be b14.1.1.2
and this is the output if i dont include them

Quote:
if nobby.1 had been renamed it would now be b14.1
if nobby.1.2 had been renamed it would now be b14.1.2
Last edited by fblade1987; 04-18-2008 at 10:33 AM..
 

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LEARN ABOUT DEBIAN

lvrename

LVRENAME(8)						      System Manager's Manual						       LVRENAME(8)

NAME

       lvrename - rename a logical volume

SYNOPSIS

       lvrename  [-A|--autobackup  {y|n}]  [-d|--debug]  [-h|--help]  [-t|--test] [-v|--verbose] [--version] [-f|--force] [--noudevsync] {OldLogi-
       calVolume{Name|Path} NewLogicalVolume{Name|Path} | VolumeGroupName OldLogicalVolumeName NewLogicalVolumeName }

DESCRIPTION

       lvrename renames an existing logical volume from OldLogicalVolume{Name|Path} to NewLogicalVolume{Name|Path}.

OPTIONS

       See lvm(8) for common options.

       --noudevsync
	      Disable udev synchronisation. The process will not wait for notification from udev.  It will continue irrespective of  any  possible
	      udev  processing	in the background.  You should only use this if udev is not running or has rules that ignore the devices LVM2 cre-
	      ates.

EXAMPLE

       To rename lvold in volume group vg02 to lvnew:

       lvrename /dev/vg02/lvold vg02/lvnew

       An alternate syntax to rename this logical volume is:

       lvrename vg02 lvold lvnew

SEE ALSO

       lvm(8), lvchange(8), vgcreate(8), vgrename(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)					       LVRENAME(8)
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