­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ scheme=$(url_scheme "$BACKUP_URL") case $scheme in (nfs) PROGS+=( showmount mount.$(url_scheme $BACKUP_URL) umount.$(url_scheme $BACKUP_URL) ) ;; (*) return ;; esac