Date: 2011apr15 OS: Linux Q. Where is the smbclient program ? A. Its in package samba-client. So if you want to install it on RedHat/Fedora/CentOS do:

dnf install samba-client

By the way, smbclient is a nice program. As the man page says it give you ftp-like client to access SMB/CIFS resources on servers.