I needed to test if a pile of modules were installed on my system, My solution (after reading this and looking elsewhere) was to use backtick and have perl write a series of scripts that would fail if the module wasn't installed. 
#!/usr/bin/perl
@modnames = qw / 
       CGI 
       Test::Simple 
       Foo::Bomb 
       Test::More 
       / ;
print "Testing for Modules: @modnames\n\n" ;
open STDERR, '>/dev/null' ;
foreach $module ( @modnames ) {
open OTHERSELF, '>REAL.pl' ;
print OTHERSELF 
    qq/use $module;\n print "succeeded $module\n" / ;     
    # With  SRDERR directed to devnull a value needs 
        # to be returned to STDOUT, the print provides 
        # a value that can be used in determining success.
close OTHERSELF ;
print "Trying $module\n" ;
$result = `perl  REAL.pl` ; 
if ( $result =~ m/succeeded/i ) 
      { print "Successfully Loaded $module \n" } 
else  { print "\n>>>>   Failed to Load $module  \n\n" }
}

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In reply to Re^2: use/require $MODULE (a variable) by brainbuz
in thread use/require $MODULE (a variable) by cadphile

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