| ( |
| |
| # 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 |
| |
| ) 2>&1 \ |
| | sed -e 's/ unrecognized option: / invalid option -- /' \ |
| -e 's/ illegal option -- / invalid option -- /' \ |
