MONTHS=(Null Jan Feb ... fill all months here ... Dec) capitalization important. space seprated. Null is a month 0 space filler and has to be there for ease of use later
cd /your/ftp/dir pretty obvious I think
for file in *.wav we are going to loop for .wav files
do start of your loop
your file format is YYYY-MM-DD-HH-MM-SS-xxxxxxxxxx.wav so get the year and month out of filename
year=$(echo ${file} | cut -d"-" -f1)
month=$(echo ${file} | cut -d"-" -f2)
STOREDIR=${year}_${MONTHS[${month}]} create the variable for stopre directory name
if [ -d ${STOREDIR} ] if the directory exists
then
mv ${file} ${STOREDIR} move the file
else if the directory doesn't exist
mkdir ${STOREDIR} create it
mv ${file} ${STOREDIR} then move the file
fi close if statement
done close the for loop.
This should be a good starting point for an inexperienced person. Try writing your script in the light of these instructions and commands. You can ask for help if you get stuck