:I need the date of folder modification to effect the folders more than one level up.
:IE.
:When a file is added to
:/main/subdir1/subdir2/
:I want the "Last modified" dates of /main/ and /subdir1/ to also be updated.
:Is there any easy way to do this?
That is not in accordance with the POSIX standards. That leaves you
with a series of choices:
1) Modify your kernel filesystem to be non-POSIX compliant (possibly
breaking many other things in the process)
2) Use a "file alteration monitor" facility to watch all areas of interest
and change the modification times as per your specifications;
3) Re-design your code so that you do not have that requirement, such
as by coding yourself up a "last_modified_recursive" function that will
dig down recursively for the information you require (watch out for
symbolic links!)
:Or does anyone know of some perl code that could take a full length path string and touch each of the dirs in it?
Not generally, no. You do realize that the directory '/' is part of
the path /main/subdir1/subdir2/ and thus you are asking for the change
time on / to be updated every time any file anywhere on the system is
modified? You probably don't own '/' though, so your code would have to
run as root.
What, by the way, do you expect to have happen in the case of symbolic
links? If /main/subdir3/foo is a symbolic link to /main/subdir1/subdir2/bar
then when 'bar' changes, should the modification time on 'subdir3'
change as well, seeing as there is a path through subdir3 that has
a modified file? Then there are symbolic links to directories...
