Shell Programming and Scripting

Hello friends;

I have many directories in my current directory( and subdirectories ). And i wanna determine the only directories( not files ) which is larger than 15000bytes.
Then; i will rename the name of directory to add "found_" string in front of this directory.

But i cannot do compare operation.
Thanks all.
#
if [ `du -sk */ | cut -f1` > 15000 ] // to compare the size of directory
then
du -sk */ | cut -f2 > directories.txt // to write the name of directories
fi

renaming process

#

"du -sk" reports the size kbytes, so 15000 bytes is 15 (kbytes)

Code:

#!/usr/bin/ksh

for DIR in `find ./* -prune -type d`
do
  DIRSIZE=`du -sk ${DIR} | nawk '{ print $1 }'`
  if [ ${DIRSIZE} -gt 15 ]
  then
    mv ${DIR} found_${DIR}
  fi
done

it does not work
mv: cannot move `./1' to `found_./1': No such file or directory
mv: cannot move `./2' to `found_./2': No such file or directory

i found it.
Many Thanks

It should ofcourse be:

.............. `find * -prune -type d`