[sudo-users] accidentally changed the owner of sudo

[Tingyu Lu]

Hello,
I accidentally typed " *sudo chown -R <MyUserName> /*"
when I type "*ls -l*", I got:

total 80
drwxrwxr-x  6 heat heat 4096 2017-08-15 16:16 build
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Desktop
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Documents
drwxr-xr-x  3 heat heat 4096 2017-05-18 23:44 Downloads
drwxrwxr-x  3 heat heat 4096 2017-04-21 01:03 espresso
-rw-r--r--  1 heat heat  179 2017-04-12 15:33 examples.desktop
drwxrwxr-x  2 heat heat 4096 2017-06-07 02:50 jhe17
drwxrwxr-x  2 heat heat 4096 2017-05-16 11:44 jliu38
drwxrwxr-x  3 heat heat 4096 2017-05-30 17:26 kkim15
drwxrwxr-x  5 heat heat 4096 2017-04-21 00:05 lammps
drwxrwxr-x  3 heat heat 4096 2017-08-31 10:50 lammps11-Aug2017
drwxrwxr-x  3 heat heat 4096 2017-08-28 20:52 lammps_cpu
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Music
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Pictures
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Public
*-rw-rw-r--  1 heat heat   38 2017-04-25 15:22 sudo*
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Templates
drwxrwxr-x 13 heat heat 4096 2017-08-28 20:40 tlu3
drwxr-xr-x  2 heat heat 4096 2017-04-12 15:36 Videos
drwxrwxr-x  2 heat heat 4096 2017-04-21 11:49 wzhang42

Here, "heat" is my username.

When I type *"ll /usr/bin/sudo"*, I got* "-rwxr-xr-x 2 root root 168768
2013-02-27 15:54 /usr/bin/sudo*"*

When I type "*sudo*", I got *"sudo: must be setuid root"*

*Could you please kindly help me with the problem?*

Thanks,
Tingyu

-- 
Best Regards,
Tingyu Lu
Mechanical and Aerospace Engineering
911 Oval Dr. - 3404 EBIII
North Carolina State University
Raleigh, NC 27695