sudo apt-get purge samba
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  attr libaio1 samba-dsdb-modules samba-vfs-modules tdb-tools
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED
  samba*
0 to upgrade, 0 to newly install, 1 to remove and 0 not to upgrade.
1 not fully installed or removed.
After this operation, 11.3 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 367442 files and directories currently installed.)
Removing samba (2:4.4.5+dfsg-2ubuntu5) ...
Processing triggers for libc-bin (2.24-3ubuntu1) ...
Processing triggers for man-db (2.7.5-1) ...
(Reading database ... 367253 files and directories currently installed.)
Removing samba (2:4.4.5+dfsg-2ubuntu5) ...
Purging configuration files for samba (2:4.4.5+dfsg-2ubuntu5) ...
Processing triggers for systemd (231-9git1) ...