Hi, removing the dollar signs lets expressions succeed which would otherwise fail - which means it introduces a behavior change.
root@jj:~# ash -c 'echo $((undef1 + undef2))' 0 root@jj:~# ash -c 'echo $(($undef1 + $undef2))' ash: arithmetic syntax error root@jj:~# ~ Jo _______________________________________________ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev
