The prompt is an indication that the system is waiting for work to do, i.e. waiting for you type in a command.
The usual indication of running as the administrator in Unix is show a prompt that contains the '#' character as either the prompt or part of the prompt.
Use the shell variable PS1 to set the command prompt to whatever you need.
Depends on what you mean by a "job". You can compile a program.
dollar sign ($)
You really can't. There is nothing in a prompt that would give that information.
Use the following: PS1='$PWD : '
A Unix shell can be obtained in Cygwin, a Unix compatibility layer used to compile Unix programs and run them on Windows. Microsoft also makes a shell known as "Windows PowerShell" which incorporates more Unix-like features than the standard command prompt.
The command you should type at the shell prompt or command prompt depends on what you want to accomplish. For example, to display the current directory, you can use pwd in Unix/Linux or cd without arguments in Windows. To list files, type ls in Unix/Linux or dir in Windows. Always ensure you have the appropriate permissions for the commands you intend to execute.
In Windows and Unix-based and Unix-like systems, the command is mkdir (however in Windows a shortcut md can be used as well).
xv6 is not a command prompt itself; rather, it is a simple Unix-like operating system used for educational purposes. It provides a command-line interface where users can execute commands similar to those in Unix. The command prompt in xv6 allows users to interact with the system, run programs, and manage files, but xv6 as a whole encompasses the entire operating system, not just the command prompt.
You can log in via telnet or ssh protocol for a command line prompt environment to Unix, or you can use a graphical user interface such as KDE or Gnome, or the CDE environment via X-windows. In any of these protocols, you must supply a username and password to successfully log into the Unix system.
Most people set up their shell to give them an indication in the command prompt. But this isn't "built in" (the mechanism for doing so is built in to most shells, but you can use the same mechanism to change the prompt to pretty much anything you want).The command pwd on a Unix system should tell you "where you are".