testfunc() works!
    ### main.sh
usage: ./run.sh options
       -a, --auto      start nightly backup
       -l, --list      list archives
       -c, --content <archive> 
                       show contents of archive
       -r, --restore <archive> <file(s)> 
                       restore files from archive to pwd
       -h, -?. --help  show this help