use strict;
use warnings;

my @path;

open PROP, "test.prop" or die "Can't open test.prop: $!\n";
while ( my $zeile = <PROP> ) {
    push @path, substr( $zeile, 7 );
}
close PROP;

for my $path ( @path ) {
    print "$path/foo/bar/baz.txt\n";
}