James on Sat, 26 Jul 2003 11:13:12 -0400


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Environment variables


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]'});
}


How would I go about getting the $i with 'X'
environment variable so I can print out X1 thru X6?  

TIA,
James









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