If you are trying to browse shares on Windows computers, you will need to use Samba. You can mount (man mount), a Windows share, and then browse it graphically with nautilus or konqueror or whatever your filesystem browser of choice is. Alternatively, you can use smbclient to browse remote smb shares in an interactive text mode. Just for starters, try
smbclient -L //YourWindowsPC
If it shows you a list of shares, you are at least on the right track.
Do some online research on 'samba'. Come back here with more specific questions. It is a biggish topic, and you are clearly at the low end of the learning scale so far.