The default user shell is set in the password file as an entry for each account.
The 'who' command merely tells you the users that are logged in and when they logged in. It doesn't give any more information. The default shell for Unix can be different for different users; if you are talking about the login shell, then you can find out the login environment for users by either using the 'finger' command on an individual user, or looking at the /etc/passwd file. It will be the last field on each line for each user.
cat /etc/passwd|grep bash
There is no such thing. The "default shell" is a decision made by the distributor.
In Windows Server 2008, the default limit is 16,777,216, which is, practically speaking, unlimited. In Windows Vista, the maximum number of users who can access a share is 10.
Up to DebianLenny, the default /bin/sh shell was bash. Starting with DebianSqueeze, the default shell will be dash.
There is no "default" Unix shell. Different Unix vendors shipped different shells.
The local user files that are read are the .login and the .cshrc files
Bash shell. Stands for Bourne Again Shell
This question is hard to answer because there is no concept of a default shell. Most shell interpreters may be stored in /bin, or /usr/bin, or some combination of those.
BASH (Bourne-again Shell)
The a default Unix shell is the shell that comes with and is activated initially with your distribution of Unix. The shell is essentially the program the runs the command line interface allowing someone to interact with their computer. Some examples are the Bourne-Again shell (bash) or the Bourne shell (sh).
You can default your home if you will set the settings to "set as default " after visiting the desired home to be the default one.