Re: Environment variables

["Eric J. Roode" <sdn@comcast.net>]

On Sat, Jul 26, 2003 at 08:12:42AM -0700, James wrote:
> I am looking for a way to use variable substitution
> with environment variables.  My /etc/environment looks
> like this:
> 
> NUM_X=6
> X1="some value"
> X2="some value"
> X3="some value"
> X4="some value"
> X5="some value"
> X6="some value"
> 
> 
> Trying to keep things dynamic, I would like to print
> out all values of X(n) by using a 'for' statement,
> which goes like this:
> 
> $num = $ENV{'NUM_X'};
> 
> for ($i = 1; $i <= $num; $i++) {
>    printf ("%15s\n", $ENV{'X[$i]'});
> }

     printf ("%15s\n", $ENV{"X$i"});

You were close.  :-)

-- 
Eric J. Roode                                            sdn@comcast.net
$_ = reverse sort $/.r , qw p ekca ts lre reh
uJ p, map $_ . $" , qw e p h tona e and print

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