I have an account with secondary group membership in a group that owns a directory.  The directory is chmod 760, which should allow writing to the directory, but not listing it.  However, this is not allowed.  Can somebody explain why?Rationale: mostly academic; trying to understand permissions in detail.  I recognize that I could make the permissions 770 and allow this; I'm not an idiot (at least I don't think so).  I just want to understand what write permissions actually mean for a directory, if not file creation.Code example:powerdave@dhirsch-centos:/tmp >groupspowerdave wheel sharepowerdave@dhirsch-centos:/tmp >ls -alhtotal 124Kdrwxrwxrwt.  5 root      root      4.0K Feb 23 15:08 ./dr-xr-xr-x. 23 root      root      4.0K Feb 23 14:57 ../drwxrw----.  2 guest     share     4.0K Feb 23 14:52 test/powerdave@dhirsch-centos:/tmp >touch test/filetouch: cannot touch `test/file': Permission denied
Why can't a group member create a file in a directory with 760 permissions?
permissions;directory