| 0 | pass | pass | var ref ${!a} |
| 1 | pass | pass | ${!ref-default} |
| 2 | pass | pass | ${!undef:-} |
| 3 | pass | pass | comparison to ${!array[@]} keys (similar SYNTAX) |
| 4 | pass | pass | ${!a[@]-'default'} is legal but fails with more than one element |
| 5 | pass | pass | var ref to $@ with @ |
| 6 | pass | pass | var ref to $1 and $2 with 1 and 2 |
| 7 | pass | pass | var ref: 1, @, * |
| 8 | pass | pass | var ref to special var BASH_SOURCE |
| 9 | pass | pass | var ref to $? with '?' |
| 10 | pass | pass | Var ref, then assignment with ${ := } |
| 11 | pass | pass | Var ref, then error with ${ ? } |
| 12 | pass | pass | Indirect expansion, THEN suffix operators |
| 13 | pass | pass | var ref OF array var -- silent a[0] decay |
| 14 | pass | pass | array ref |
| 15 | pass | pass | array ref with strict_array |
| 16 | pass | pass | var ref TO array var |
| 17 | pass | pass | var ref TO array var, with subscripts |
| 18 | pass | pass | var ref TO assoc array a[key] |
| 19 | pass | pass | var ref TO array with arbitrary subscripts |
| 20 | pass | pass | Bizarre tilde expansion in array index |
| 21 | pass | pass | Indirect expansion TO fancy expansion features bash disallows |
| 22 | pass | pass | Bad var ref |
| 23 | pass | pass | Bad var ref 2 |
| 24 | pass | pass | ${!OPTIND} (used by bash completion |
| 25 | pass | pass | var ref doesn't need cycle detection |
| 26 | pass | pass | Var Ref Code Injection $(tee PWNED) |
| 27 | pass | pass | ${!array_ref:-set} and ${!array_ref:=assign} |
| 28 | pass | pass | Array indirect expansion with suffix operators |
| 29 | pass | pass | Array indirect expansion with replacements |
| 30 | pass | pass | Array indirect expansion with @? conversion |