#/bin/bash
sdkk=".SDK"
sdkl=".sdk"
filen=""
for fil in *; do 
    echo ${#fil}
    if [ ${#fil} -gt 11 ] ; then
       filen=$fil$sdkl
    else
       filen=$fil$sdkk
    fi
    if [ ! -d $fil ] ; then
       if [ $fil != "sdk.sh" ] ; then
          echo $filen
          mv $fil $filen
       fi
    fi
done;