Is Microsoft going to supply BASH, TCSH or any type of unix type shells? Where is a list of command line commands for core server? cmd.exe is a weak shell and unless enough cli tools are provided to make this thing really useful
Windows isn't as shell-centric as Unix is.
Philosophically, you don't generally pass around bits of data between multiple programs in Windows. Instead, you write script in VBScript, JScript, etc. and have cscript (or wscript) execute it. You get contructs and tools (string manipulation, file I/O,
logging, etc.) which are more or less equivalent to what you'll get from the GNU set of tools, as well as access to a lot of neat information and functionality that the OS provides, through WMI and COM.
Microsoft has already been providing piles of Unix command-line tools for years, including tcsh and ksh. More info here:
Whether or not this stuff will be installable as part of Server Core is something MS will need to clarify someday.