Tubes-OS-1-Command-Line
A simple command line project for a better understanding of forking which runs in UNIX based Operating System.
Features
- Showing current working directory
- Change current directory using cd
- Execute a program from a directory
- Execute an external program from Environmental Path
- Redirect STDIN and STDOUT, ex: ./main < input.txt > output.txt
- Get histories of command by using up and down arrow key
- Pipeline between two process, ex: cat out.txt | wc -l
- A combination between STDIN/STDOUT redirection and pipeline
Note
The get histories of command feature uses another library history.h, so further installation of this library is needed. Main program is in shell.cpp, which do command processing. shellfunc.cpp: Procedures/function in the features To compile, please refer to "makefile.txt"
Todo list
- jobs: list all running process and its PID
- fg: continuing process which is stopped with Ctrl+Z
- kill: stopped a process which is running
- Supporting multiple pipelines
- A cleaner code, some functions have too many parameters