###Rshell is a simple shell.

• rshell.c 　　main program

• type_prompt.c 　　print out the prompt of wshell including path,hostname

• read_command.c 　　read command input, and analyse the command and parameter(s).

• builtin_command.c 　　support some built-in command,such as exit,quit,about, and cd.

• test.c

###Rshell is coded in Xcode and compile via markfile.