Re: export -p may output invalid variables

[Chet Ramey]

Stephane Chazelas wrote:

> Bash Version: 3.2
> Patch Level: 33
> Release Status: release
>
> Description:
>   ~$ env -i '1=a' sh -c 'export -p'
>   export 1="a"
>   export OLDPWD
>   export PWD="/home/chazelas"
>   export SHLVL="1"
>   ~$ env -i '1=a' bash -c 'export -p'
>   declare -x 1="a"
>   declare -x OLDPWD
>   declare -x PWD="/home/chazelas"
>   declare -x SHLVL="1"
>   ~$ env -i '1=a' sh -c 'export -p' | sh
>   sh: line 1: export: `1=a': not a valid identifier
>   ~$ env -i '1=a' bash -c 'export -p' | bash
>   bash: line 1: declare: `1=a': not a valid identifier

Thanks for the report.  The right fix is to ignore words in the
environment that are not valid shell assignment statements.  Bash
already does this for words without an `=', for instance.

Chet

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                       Live Strong.  No day but today.
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/