| # check invalid options are rejected | |
| # bash: in posix mode, aborts if non-interactive | |
| unset - | |
| echo $? | |
| unset -m a b c | |
| echo $? | |
| # check funky usage | |
| unset | |
| echo $? | |
| # check normal usage | |
| echo ___ | |
| f=f g=g | |
| echo $? $f $g | |
| unset f | |
| echo $? $f $g | |
| unset g | |
| echo $? $f $g | |
| echo ___ | |
| f=f g=g | |
| echo $? $f $g | |
| unset f g | |
| echo $? $f $g | |
| f=f g=g | |
| echo $? $f $g | |
| unset -v f g | |
| echo $? $f $g | |
| # check read only vars | |
| echo ___ | |
| f=f g=g | |
| VAR_RO=1 | |
| readonly VAR_RO | |
| unset VAR_RO | |
| echo $? $f $g | |
| unset f VAR_RO g | |
| echo $? $f $g |