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RSHELL

Licensing Information: READ LICENSE

Project source can be downloaded from https://github.com/khuan013/rshell.git

Author & Contributor List

Kenneth Huang

All known bugs and fixes can be sent to [email protected]

File List

.:
Makefile

LICENSE

README.md

./src

./tests

/src:

rshell.cpp

/tests:
exec.script

How to run file

  1. cd into rshell directory
  2. Call make
  3. cd into bin
  4. Call rshell

Rshell runs instead of bash, type exit to quit the program.

Overview

This program was created to be a simple command shell. It can take in multiple commands using the connectors, && || and ;. Uses wait(), fork() and execvp() to call functions.

Parses the input by breaking it up into a string vector, and then determines which elements should be sent to execvp.

Connectors work based on the most recent command. If the command before an && did not succeed, no further commands will be executed. If a command before an || does succeed, no further commands will be executed.

Also displays the user and hostname of the machine the user is logged into.

Bugs and Limitations

  • When running the program in a script on local machine, the getlogin() function causes an error.
  • Does not handle comments # in quotations marks when using echo.
  • Typing an odd number of & or | characters will cause a seg fault. (fixed)