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Full Discussion: Change filenames recursively
Top Forums Shell Programming and Scripting Change filenames recursively Post 302903638 by LMHmedchem on Wednesday 28th of May 2014 05:24:28 PM
Old 05-28-2014
Change filenames recursively
Hello,

I made a mistake in a script and now need to go back and change allot of filenames. I need to change "v4" in filenames to "v3". I was thinking of something like this.

Code:
#!/bin/bash

FILELIST=$(ls -f -R *)

for FILE in $FILELIST
do

   # create new filename
   NEW_FILE_NAME=$(echo $FILE | sed 's/v4/v3/g')

   # if a substitution was made
   if [ "$NEW_FILE_NAME" -ne "$FILE" ]; then

      # copy file to new name
      cp $FILE $NEW_FILE_NAME

      # remove original file
      rm $FILE
   fi

done

There are a rew issues with this approach. I'm not sure that ls -R -f is the best way to retrieve the list of files and since this will run recursively, I need to do some testing to make sure I don't do more harm the good. I'm also not sure about the ls -f option as far as filenames and paths go since I'm not changing directories.

Any suggestions?

LMHmedchem
Last edited by LMHmedchem; 05-28-2014 at 06:55 PM..
 

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LEARN ABOUT REDHAT

prunehistory

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

NAME

       prunehistory - remove file names from Usenet history file

SYNOPSIS

       prunehistory [ -f filename ] [ -p ]

DESCRIPTION

       Prunehistory  modifies  the  history(5)	text file to ``remove'' a set of filenames from it.  The filenames are removed by overwriting them
       with spaces, so that the size and position of any following entries does not change.

       Prunehistory reads the standard input.  The input is taken as a set of lines.  Blank lines and lines starting with a  number  sign  (``#'')
       are ignored.  All other lines are should consist of a Message-ID followed by zero or more filenames.

       The  Message-ID	is  used as the dbz(3) key to get an offset into the text file.  If no filenames are mentioned on the input line, then all
       filenames in the text are ``removed.''  If any filenames are mentioned, they are converted into the history file notation.  If they  appear
       in the line for the specified Message-ID then they are removed.

       Since innd(8) only appends to the text file, prunehistory does not need to have any interaction with it.

OPTIONS

       -p     Prunehistory will normally complain about lines that do not follow the correct format.  If the ``-p'' flag is used, then the program
	      will silently print any invalid lines on its standard output.  (Blank lines and comment lines are also passed through.)  This can be
	      useful when prunehistory is used as a filter for other programs such as reap.

       -f     The default name of the history file is <pathdb in inn.conf>/history; to specify a different name, use the ``-f'' flag.

HISTORY

       Written by Rich $alz <rsalz@uunet.uu.net> for InterNetNews.  This is revision 1.7, dated 1998/04/09.

SEE ALSO

       dbz(3), history(5), inn.conf(5), innd(8).

																   PRUNEHISTORY(8)
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