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ABOUT
Assignment for CSE 422 - Operating Systems from my spring semester of
Junior year. This is a single file pseudo shell to run in your shell!
USAGE
Lab instructions are included in the file:
CSE422 Spring 2015 - Lab1 Instructions.pdf
XSSH takes in commands of the format:
xssh [-x] [-d <level>] [-f file [arg] ... ]
What other fun things can this shell do?
- Internal commands (show, set, unset, export, etc.)
- External commands (fork/execs other programs)
- Supports search paths (absolute, relative, from PATH)
- Background commands (use "&" to run a process in the bg)
- Local and global variables
- Variable substitution ("$" to denote variables)
- Special variable substitution ($$, $?, $!)
- Stdin/Stdout redirection
- Handles terminal-generated signals
- Has a fancy command line prompt
- Ignores your #comments
- Can run the pseudo shell within itself within itself B-)
AUTHOR
Alice Wang, Feb 5, 2015
INSTALL
Use your favorite C compiler! I personally used gcc:
gcc -o xssh xssh.c -std=c99