Re: env -u is not work

[Eric Blake]

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According to utking on 6/6/2009 12:48 PM:
>    Hi everyone!
> 
>    After setting up my environment variable like this
>     $env GENA=1
>    i have this one is environment list, but when i want to remove it with
>    $env -u GENA    or    $env --unset GENA
>    it still there.
> 
>    This actions takes is same terminal window (gnome-terminal).
> 
>    Is this a bug? or my hands? :)

Probably a misunderstanding on your part.  'env -u' unsets environment
variables for the single child process passed as an argument to env, and
since you didn't pass a child process name, the effect is immediately
lost.  But if you want to unset an environment variable in the parent
process (your shell) and all subsequent children spawned by that shell,
then don't use env.  Instead, use the shell builtin 'unset' (if you are
using a POSIX-like shell) or 'unsetenv' (if you are using a csh variant).

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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