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Top Forums UNIX for Dummies Questions & Answers Find a list of files in directory, move to new, allow duplicates Post 302911957 by jim mcnamara on Monday 4th of August 2014 11:17:57 PM
Old 08-05-2014
Your duplicates requirement is not met in this code - I did not quite get it. Sorry.
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.

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.

Stuff like this should probably be written in C. dirent.h is your friend.
 

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MV(1)							      General Commands Manual							     MV(1)

NAME
mv - move or rename files SYNOPSIS
mv [ -i ] [ -f ] [ - ] file1 file2 mv [ -i ] [ -f ] [ - ] file ... directory DESCRIPTION
Mv moves (changes the name of) file1 to file2. If file2 already exists, it is removed before file1 is moved. If file2 has a mode which forbids writing, mv prints the mode (see chmod(2)) and reads the standard input to obtain a line; if the line begins with y, the move takes place; if not, mv exits. In the second form, one or more files (plain files or directories) are moved to the directory with their original file-names. Mv refuses to move a file onto itself. Options: -i stands for interactive mode. Whenever a move is to supercede an existing file, the user is prompted by the name of the file followed by a question mark. If he answers with a line starting with 'y', the move continues. Any other reply prevents the move from occur- ring. -f stands for force. This option overrides any mode restrictions or the -i switch. - means interpret all the following arguments to mv as file names. This allows file names starting with minus. SEE ALSO
cp(1), ln(1) BUGS
If file1 and file2 lie on different file systems, mv must copy the file and delete the original. In this case the owner name becomes that of the copying process and any linking relationship with other files is lost. 4th Berkeley Distribution April 29, 1985 MV(1)
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