$s = q[BONDING_MODULE_OPTS='mode=active-backup miimon=100 primary=p6p2 primary_reselect=1'];;

( $key, $value ) = split '=', $s, 2;;

print "<$key> <$value>";;
<BONDING_MODULE_OPTS> <'mode=active-backup miimon=100 primary=p6p2 primary_reselect=1'>