I read about the hash of hashes and tried the following. Although, the check doesn't seem to work, it prints error when the condition should be false. Does anybody know where I'm going wrong? 
$filesystem = $ARGV[0]; #store the file system you would like to run D
+U command on
if ( $ARGV[0] eq "" ) {
   die "usage: $0 filename\n";
}
$host=`hostname`;
        my %filesystems = (
                            hosta => { desc => 'x', filesystemA => [ q
+q|/the/first/filesystem|], filesystemB =>  [ qq|/the/second/fielsyste
+m| ] },
                            hostb => { desc => 'r', filesystemA => [ q
+q|/the/first/filesystem | ], filesystemB => [qq|no filesystemB for 2n
+d host |]}

        );
$choice = $filesystems{$host};
if ( not $filesystems{filesystemA}{$filesystem} ) {
        print "error\n";
}

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In reply to Re^2: Mulitple values for a key in a hash by wishartz
in thread Mulitple values for a key in a hash by wishartz

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