Project description

The OS project is my learning project using OSTEP (book & website, including assignments).

Shell

The markus-shell, mash is located in ./process. It has the following features:

• Support 3 builtins: exit, cd and path
• Support redirection and parallel execution

Future .plan

• Add support for pipes (at the moment only support parsing pipes)
• Add support for combination of pipes and parallel execution:
  • e.g. cmdA1 | ... | cmdAn & cmdB1 | ... | cmdBm
• Add more builtins

ls

The markus-ls, mls is located in ./process. It was developed from the original 1992 version of Linux ls.c and supports a few switches:

• -l for long format
• -1 for one per line format
• -F for type indicator
• -A for all files
• -a for all files plus . and ..
• -Q for quoted file names
• And a few others