Question : Bash script to move and rename files based on a file name

I have a bunch of files that I need to move based on a file name and than once moved files need to be renamed:
Example:
group of files
[...]
005512345.txt
0055742394.txt
[...]
to be moved based on its 4th and 5th character (55) to a folder 55 and then renamed to file 12345..742394.txt (remove first four characters). All files are numeric names and all folders are in the same directory level, and folders are already created.

Please help ASAP.
Thank you.

Answer : Bash script to move and rename files based on a file name

try

cd /dir
ls | while read file
do
   dir=`echo $file | cut -c3,4`
   nfile=`echo $file | cut -c5-`
   mv $file /path/to/$dir/$nfile
done