On Jul 15, 2017 01:34, "Arun Khan" <[email protected]> wrote:
On Wed, Jul 12, 2017 at 9:56 AM, Rony Bill <[email protected]> wrote: > Dear Friends, > > In Linux is there a way in which new files or folders created in a > directory will inherit the directory's owner and group with the same > permissions too? The new files or folders are currently getting created > with the user and group of the user who created them. I want all the new > data to have user:group and permissions of the parent directory. > > I have tried different things like suid sgid sticky bit and even mounting > the folder with a certain uid, gid and umask but new data does not inherit > the same. > 'setgid' should do the trick. Note: all users must be a member of the group. Here's a small test case: user is sysadmin (sysadmin.sysadmin) *and* also a member of the 'adm' group. Set *all* the user's umask to 0002, this will allow group members to edit file and allow 'other' read only . Login as 'sysadmin' user. $ cd /var/tmp/ $ mkdir testdir $ ls -dl testdir # should show sysadmin.sysadmin ownership $ chmod 4775 testdir # you can change 5 to 0 if you don't want 'other' to read the directory or files. $ ls -dl testdir # should show setgid bit on, owner+group writable, $ chown sysadmin.adm testdir # should show 'sysadmin.adm' ownerships. $ cd testdir $ mkdir yadir # user sysadmin is able to create a directory $ ls -dl yadir # should show sysadmin.adm ownership $ touch testfile.txt # should show sysadmin.adm ownership with rwrwr-- perms The key thing is *consistent* umask for all members of the group. You will run into issues if users create dirs/files with a different umask e.g. 0027 HTH. -- Arun Khan Thanks Arun, will try it out. Regards, Rony. -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
