Create a collaborative directory/home/admins with the following characteristics:
Group ownership of /home/admins is adminuser
The directory should be readable, writable, and accessible to members of adminuser, but not to any other user.
(It is understood that root has access to all files and directories on the system.) Files created in /home/admins automatically have group ownership set to the adminuser group

Find the rows that contain abcde from file /etc/testfile, and write it to the file/tmp/testfile, and the sequence is requested as the same as /etc/testfile.

Copy /etc/fstab to /var/tmp name admin, the user1 could read, write and modify it, while user2 without any permission.

Add user: user1, set uid=601
Password: redhat
The user's login shell should be non-interactive.

CORRECT TEXT
Create a volume group,and set 8M as a extends. Divided a volume group containing 50 extends on volume group lv (lvshare), make it as ext4 file system, and mounted automatically under /mnt/data. And the size of the floating range should set between 380M and 400M.