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File renaming from list of names contained in another file

 
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Old 06-27-2010
File renaming from list of names contained in another file
I have to rename a large number of files so that the name of each file corresponds to a code number that is given side by side in a list (textfile).
The list contains in column A the filename of the actual files to be renamed and in column B the name (a client code, 9 digits) that has to be assigned to the file.

Listfile:
file-abcd.pdf #to be renamed [tab] 123456789 #the new filename
file-abce.pdf #to be renamed [tab] 809809231 #the new filename
a.s.o

Desired outcome:
file-abcd.pdf --> file.123456789.pdf
file-abce.pdf --> file.809809231.pdf
a.s.o

It's to say "for F in each actual file in files/ named like this on the left, re-name it to the name to the right and keep the old extension... But bash did not understand this phrase Smilie)
The names to be given are stored in a file but the files to name are actual files, so just no idea how to tackle this and where to even start.

So far all the scripting I could do and understand in bash was loops to rename just an extension to a file, or to add an extra suffix. Beginner... sigh... But there has to be a way to do it in Linux, there usually is.
Thanks in advance for your help!
 
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LEARN ABOUT DEBIAN

dh-exec-install

DH-EXEC-INSTALL(1)						      dh-exec							DH-EXEC-INSTALL(1)

NAME

       dh-exec-install - Install (and possibly rename) files.

SYNOPSIS

       #! /usr/bin/dh-exec
       debian/default.conf => /etc/my-package/start.conf
       usr/bin/*

DESCRIPTION

       Being a sub-command of dh-exec(1), this program must not be ran directly, but through dh-exec, which automatically runs all available
       sub-commands if run bare; or explicitly with dh-exec --with=install.

       It is meant to be used for dh_install(1) files, and those alone. If it finds that its input is not such a file, it will do nothing, but
       echo back the contents.

       The purpose of the program is to extend dh_install(1)'s functionality, by allowing to specify a destination filename.

       This can be accomplished by a special syntax: the " => " mark between a source and a destination means that the source file should be
       installed with the specified destination name.

       For obvious reasons, the source must not be a wildcard, and the destination in this case must be a file, and not a directory.

       All other non-comment lines are left alone.

RESTRICTIONS

       Due to the way executable scripts are called from debhelper(1), there is no way to know what options were used for the original
       dh_install(1). This means, that the --sourcedir option of dh_install(1) will not work correctly when dh-exec-install is in use.

IMPLEMENTATION

       Internally, the renaming happens by creating a temporary directory under debian/tmp/, and copying (or moving, if the source was under
       debian/tmp/ to begin with) the file there, with the new name.

       This is done this way to allow dh_install(1) to do the real copying, and allow its options to continue working, even when renaming is
       involved.

       The temporary directory is put under debian/tmp so that it will be cleaned by dh_prep(1) when the clean target gets to run. Thus, no extra
       code is needed anywhere to clean up the renamed files.

ENVIRONMENT

       DH_EXEC_SCRIPTDIR
	   Indicates which directory the command-specific scripts should be sought for. If not specified, scripts will be searched for in
	   /usr/share/dh-exec/.

FILES

       $DH_EXEC_SCRIPTDIR/dh-exec-install-*
	   The various scripts for the higher-level program.

SEE ALSO

       debhelper(1), dh-exec(1), dh_install(1)

AUTHOR

       dh-exec-install is copyright (C) 2011-2012 by Gergely Nagy <algernon@madhouse-project.org>.

								    2012-05-03							DH-EXEC-INSTALL(1)