Using mkdir -m -p and chown together correctly

Question

I would like to create a directory using a bash script and then set the mode to 00755 at the same time

mkdir -p -m=00755 "/dir/dir2"

Is this the correct way of using them together and can I also add chown command to the same line while creating them?

Solution 1

It goes a little like this:

install -d -m 0755 -o someuser -g somegroup /dir/dir2

Solution 2

If you want to set the owner during creation, you can simply impersonate as this user, using sudo for example:

sudo -uTHE_USER mkdir -p -m=00755 "/dir/dir2"

This has the advantage that there will be no time difference between creation and changing the ownership, which could otherwise being harmful if exploited.