Move files using Bash and SFTP

sftp_mv.sh

# create a heredoc of the command you want to run, run and assign outout to a variable
getfiles=`sftp [email protected] <<GETF
ls
bye
GETF`

# Execute command and filter output, quote output to preserve new lines, this assumes all files desired are prefixed foobar_
filelist=`echo "$getfiles"|grep 'foobar_'`

(
for file in $filelist; do
    echo rename $file old/$file
done
echo bye
) | sftp [email protected]