Find a list of files in directory, move to new, allow duplicates Post: 302911988

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Top Forums UNIX for Dummies Questions & Answers Find a list of files in directory, move to new, allow duplicates Post 302911988 by bakunin on Tuesday 5th of August 2014 04:29:00 AM

08-05-2014

Registered User

Quote:

Originally Posted by jim mcnamara

Code:

find /path/to/files -type f  | grep -Ff text_file_with_file_names > outputfile

while read filename
do
  mv $filename   /path/to/somewhere/
done <outputfile

That said - DO NOT agglomerate zillions of user data files adhoc in one file tree.
It is completely possible to have parked those files into meaningful directory names - i.e., the text you are using as a key. Then you can simply look for a directory and go from there. Pre-planning beats kludge like this every time.

Concur! Especially for the last Sentence!

Quote:

Originally Posted by jim mcnamara

PS: because you want to run this ONE time there is a huge performance penalty:
grep -Ff filename has to scan the entire 300 lines of filename for every file it finds. And since you seem to have large numbers of files be prepared to wait.

True. Here is my take at it, based on yours. The rationale is that after the first scan the inode list is cached in memory and the next finds will go a lot faster:

Code:

while read FILEMASK ; do
     find /path/to/sourcedir -type f -name "*${FILEMASK}*" |\
          while read MOVEFILE ; do
               FNAME="${MOVEFILE##*/}"
               if [ -f "/path/to/targetdir/$FNAME" ] ; then
                    mv "$MOVEFILE" "/path/to/targetdir/${FNAME}.$$"
               else
                    mv "$MOVEFILE" "/path/to/targetdir"
               fi
          done
done < /path/to/list.of.filemasks

Note that no security provisions are put into place: checks for exhausted diskspace, successful move operation, etc.. are all missing and you should add them before putting this sketch into a fire-and-forget script.

I hope this helps.

bakunin

bakunin

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BEAV(1) 						      General Commands Manual							   BEAV(1)

NAME

       beav - binary file editor and viewer

SYNOPSIS

       beav [file...]

DESCRIPTION

       This  is  a  brief  description	of  the minimal set of commands that are necessary to start using beav effectively.  For more information,
       review the file /usr/share/doc/beav/beav140.txt.gz.

       The file-visit command, Ctl-X Ctl-V, can be used to read a file in for editing.	 The file can also be read in from the command line;  beav
       <edit_file>.

       Data is displayed in one or more windows.  These commands can be used to navigate around the windows.

	      move-back-char	  Ctl-B     moves left
	      move-back-line	  Ctl-P     moves up
	      move-forw-char	  Ctl-F     moves right
	      move-forw-line	  Ctl-N     moves down
	      window-delete	  Ctl-X 0   delete window
	      window-expand	  Ctl-X 1   expand window

       The move-to-byte command, Ctl-X G, will prompt you for a byte position to move to.

       These commands will insert a zero byte at the cursor position or delete the byte at that position.

	      insert-unit	  Ctl-X I
	      delete-forw-unit	  Esc D

       The file-save command, Ctl-X Ctl-S, will save the data to the file if a change has been made.

       The help command, Esc ?, will display a list of all commands and their current key bindings.

       The abort-cmd command, Ctl-G, will abort any command that is in operation.

       The quit-no-save command, Ctl-X Ctl-C, will exit beav.  If there is any data that has not been saved you will be warned.

FILES

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