On a Debian distribution (Mint, Ubuntu), apt-get install can be used to install samba-client (which includes the smbclient command). On a Red Hat distribution (CentOS, Fedora, Red Hat), dnf install or yum install can be used.

dnf install samba-client

The smbclient command with the -L or --list option can be used to list the current shares. By default, when the -U or --user option is not included, the logon will be performed as a guest. If guest logins are permitted, something like this should be returned.

In this example, the "share" directory is being shared.

~]# smbclient --list $(hostname -s)
Enter SAMBA\GUEST's password: Anonymous login successful

        Sharename       Type      Comment
        ---------       ----      -------
        share           Disk
        IPC$            IPC       IPC Service (Samba 4.12.2)
SMB1 disabled -- no workgroup available

Or, the -U or --user option can be included to login as a specific user.

smbclient --list //$(hostname -s)/share --user john.doe