From mboxrd@z Thu Jan  1 00:00:00 1970
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In-Reply-To: <df49a7370911240329p341e153au2b5ca468999a4fe0@mail.gmail.com>
References: <a560a5d00911231424k7cfe7382v7a8339d8cf8376c6@mail.gmail.com>
	<df49a7370911240329p341e153au2b5ca468999a4fe0@mail.gmail.com>
Date: Tue, 24 Nov 2009 17:28:32 +0100
Message-ID: <a560a5d00911240828q31c106d7rf354f14baa15e2d3@mail.gmail.com>
From: Rudolf Sykora <rudolf.sykora@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Content-Type: multipart/alternative; boundary=000e0cd1467ce1c8b80479206e2e
Subject: Re: [9fans] environment variables
Topicbox-Message-UUID: 9f3d2840-ead5-11e9-9d60-3106f5b1d025

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>
> if you want to re-get the value of an environment variable,
> you can do:
>
> ifs=() var=`{cat /env/var}
>

Ok. So if one wants to update the rc's view of the environment, one must
write sth. along the lines

for(var in `{ls /env}) {
    ifs=() contents = `{cat /env/$var}
    if (~ $var *#*) fn `{echo $var | awk '{split($0, a, "#"); print a[1]}'}
{$contents}
    if not var = $contents
}

?

Thanks
Ruda

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<div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"borde=
r-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-le=
ft: 1ex;">if you want to re-get the value of an environment variable,<br>
you can do:<br>
<br>
ifs=3D() var=3D`{cat /env/var}<br>
</blockquote></div><br>Ok. So if one wants to update the rc&#39;s view of t=
he environment, one must write sth. along the lines<br><br>for(var in `{ls =
/env}) {<br>=A0=A0=A0 ifs=3D() contents =3D `{cat /env/$var}<br>=A0=A0=A0 i=
f (~ $var *#*) fn `{echo $var | awk &#39;{split($0, a, &quot;#&quot;); prin=
t a[1]}&#39;} {$contents}<br>
=A0=A0=A0 if not var =3D $contents<br>}<br><br>?<br><br>Thanks<br>Ruda<br>

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