问题
I have to change the permissions of the htdocs directory in apache to a certain group and with certain read/write/execute.
The directories need to have 775 permissions and the files need to have 664.
If I do a recursive 664 to the htdocs, then all files and directories will change to 664.
I don't want to change the directories manually.
Is there any way to change only files or directories?
回答1:
Use find's -type option to limit actions to files and directories. Use the -o option to specify alternate actions for different types, so you only have to run find once, rather than separately for each type.
find htdocs -type f -exec chmod 664 {} + -o -type d -exec chmod 775 {} +
回答2:
chmod can actually do this itself; the X symbolic permission means "execute, if it makes sense" which generally means on directories but not files. So, you can use:
chmod -R u=rwX,go=rX /path/to/htdocs
The only potential problem is that if any of the plain files already have execute set, chmod assumes it's intentional and keeps it.
回答3:
Use find to search for directories and apply chmod on them:
find -type d | xargs chmod 775
Use type f for file:
find -type f | xargs chmod 775
回答4:
try:
find htdocs -type d -exec chmod 775 {} +
回答5:
Gordon's answer above is correct, but if you're trying to lock down access to a directory tree, it leaves scripts that are executable to the owner also executable to whoever has been granted the capital X.
Using
find -type d exec chmod 775 {} +
or
find -type d exec chmod 755 {} +
is safer.
回答6:
I use something similar to the solution provided by Gordon:
chmod -R ug=rw,o=r,a+X /path/to/folder/
It should always set 775 for folders and 664 for files, even if the execute permission was previosly set for some file
来源：https://stackoverflow.com/questions/17091300/linux-set-permission-only-to-directories