RMTSHARE.exe (NT 4 Resource kit - download)

Manage File and Printer shares, local or on a remote server.
Although missing from recent Resource kits, the old version appears to work fine under Windows 2000/XP/2003.

Syntax
  Display all shares
      RMTSHARE \\server

  Display details of a specific share
      RMTSHARE \\server\sharename

  Share a Folder 
      RMTSHARE \\server\sharename=drive:path [options]

  Share a Printer 
      RMTSHARE \\server\sharename=printername /PRINTER [options]

  Edit an existing SHARE
      RMTSHARE \\server\sharename [options]

  Delete a SHARE
      RMTSHARE \\server\sharename /DELETE

Options
      /USERS:number 
      /UNLIMITED
      /REMARK:"text"
      /GRANT user:perm
      /REMOVE user

Notes: Either specify /Users to restrict the number of connections that can be made OR specify /UNLIMITED
You can include several /GRANTs in a single command line.
Enclose paths that include spaces like this
\\server\"long share name"="c:\long file name"

“How to be green? consume less, share more, enjoy life” ~ Penny Kemp

Related:

CACLS - Apply File permissions
NET USE - Connect to a file share
REMOTE - Run a command on a remote computer (Resource Kit)
RUNDLL32 - Run a DLL command (add/remove print connections)
SHARE - List or edit a file share or print share (on any computer)
Powershell: Get-WmiObject win32_share
Equivalent bash command (Linux): mount - Mount a file system