# malformed regex [[ a =~ * ]]; echo 1:ERR2:$? [[ a/b =~ a.b ]]; echo 2:YES:$? [[ a/b =~ /*b ]]; echo 3:YES:$? v='[]b.-]' [[ a/.b] =~ $v ]]; echo 4:YES:$? v=']b.-' [[ a/.b] =~ $v ]]; echo 5:no:$? [[ a/.b] =~ [$v] ]]; echo 6:YES:$?
