Batch copy and rename multiple files

Question

I would like to batch copy and rename all files from a directory, recursively.

I have something like this:

/dir/subdir/file.aa
/dir/subdir/fileb.aa
/dir/filec.aa

and would like all files to be copied as this:

/newdir/1.xx
/newdir/2.xx
/newdir/3.xx
/newdir/4.xx

.. /newdir/nn.xx

How can I do this in bash?

Answer 1

find -name "*.aa" | cat -n | while read n f; do
    cp "$f" newdir/"$n".xx
done

will work with (nearly) any valid filename (except if you have newlines in it, which would be allowed as well).

If you are not restricted to the shell, another solution in python could be

#!/usr/bin/env python

if __name__ == '__main__':
    import sys
    import os
    import shutil
    target = sys.argv[1]
    for num, source in enumerate(sys.argv[2:]):
        shutil.move(source, os.path.join(target, "%d.xx" % num))

which then could be called as

<script name> newdir *.aa

Answer 2

Try sth. like this:

num=0
for i in `find -name "*.aa"`; do
    let num=num+1
    cp $i newdir/$lc.xx
done