On Jan 9, 2008, at 5:21 PM, Wade Preston Shearer wrote:
Is there a way to recursively set all directories permissions to one
thing and all files to another?
The reason that I ask is because I have a directory (and everything
within it) on a website where non-script files (images, style
sheets, PDFs, etc) are located and I want to ensure that a script
file (PHP) cannot be placed in there and executed.
I tried removing execution from everything but have discovered that
I then cannot cd into them. So, it appears that I need all of the
directories to have execution, but not the files. Don't files
inherit permissions from their parent directories though? So any new
files would get execution permissions and my work would be for
naught? How do people get around this?
My understanding is that the default permissions for directories are
0755 and for files 0644, which turns on execution for directories but
not files. If you need to change the defaults, you use the umask:
http://www.dartmouth.edu/~rc/help/faq/permissions.html
For changing existing directories, you might use a command like this:
find . -type d | xargs -I% chmod 0755 %
And for existing files:
find . -type f | xargs -I% chmod 0644 %
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