Introduction - If you have any usage issues, please Google them yourself
A linux command interpreter, including complete project source code plus design documents. This procedure is implemented in C, to achieve the following features: 1, able to execute an external program command, the command can be parameterized able to perform fg, bg, cd, history, exit internal command 3, the use of pipes and redirect input and output 4, support the front and back office operations, job control functions, including the list of print jobs, change the currently running job front/back-end status, and control operations pending termination and continue to run 5, using the Make utility to establish engineering use the debugger gdb to debug procedures