Environment variables in Perl

jgt · #1 (**permalink**) 04-04-2008

I don't use perl very often, and am stuck on how to create a perl variable from a literal and an environment variable;

eg
$FILE='/u/output'+env($UNIQUE_ID);

Also how does the Apache web server create the UNIQUE_ID environment variable, and will an 8 character substring from 3 to 10 incl, in lower case be unique?

Thanks,

Jack

jgt · #2 (**permalink**) 04-04-2008

Part 1 solved, use the join function.

KevinADC · #3 (**permalink**) 04-04-2008

use double-quotes to construct strings that have variables in them. Use join() to join the elements of a list into a string.

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