xxsh Linux shell

This is the shell implementation for CMPT 360 Lab 2.

Group members:

• Crush Bate
• Dakota Doolaege

Building

The project is divided into multiple modules which can be found in the subdirectories of the main directory.

Each module can be built independently by navigating to its directory and running:

make

NOTE: These modules are not standalone applications and will require either the testing program to use them or the main shell (xxshModule).

The whole project can be made at once from the top directory by running:

make

Running

Building the project results in a main shell executable called xxsh being generated in the main directory.

./xxsh

Supported commands

• export: Sets environmental variables.
• env: Lists environmental variables.
• history: Displays recently typed commands. Defaults to storing five entries The number of entries to store can be changed by exporting HISTSIZE.
• quit: Returns from shell.
• exit: Returns from shell.

Testing

Modules support automatic testing. Testing can be done for each module or for the entire application by running the following recipe in the module directory or the main directory to run all tests:

make test